Below is the text of my corrupt cfg file using the cfgeditor software by zeno if anyone is interested in analyzing it. As I indicated in my original post, CHDK does not function properly when the cfg file is used on my A650IS camera.
Show OSD = On
Save raw = Off
Script shoot delay (.1s) = 0
Show Live Histogram = Don't
Script Parameters a = 5
Script Parameters b = 7
Script Parameters c = 10
Script Parameters d = 30
Script Parameters e = 0
Script Parameters f = 0
Script Parameters g = 0
Script Parameters h = 0
Script Parameters i = 0
Script Parameters j = 0
Script Parameters k = 0
Script Parameters l = 0
Script Parameters m = 0
Script Parameters n = 0
Script Parameters o = 0
Script Parameters p = 0
Script Parameters q = 0
Script Parameters r = 1
Script Parameters s = 0
Script Parameters t = 0
Script Parameters u = 0
Script Parameters v = 0
Script Parameters w = 0
Script Parameters x = 0
Script Parameters y = 0
Script Parameters z = 0
Current Script = ''
Show DOF Calculator = Separate
Battery MAX voltage (mV) = 5750
Battery MIN voltage (mV) = 4200
Battery Step Size (On=25, OFF=1mV) = On
Show Battery Percent = On
Show Battery Voltage = Off
Show Battery Icon = On
Show State = On
Show Values = Always
Show Histogram Over/Under EXP = Off
Histogram Mode = Linear
Histogram Auto Magnify = 1
Histogram Ignore Boundary Peaks = 4
Histogram Layout = RGB all
Histogram Position = 5,130
DOF Position = 90,45
Battery Icon Position = 178,0
Battery Text Position = 178,16
Mode State_ Position = 7,5
Values Position = 288,96
Histogram Color = White:BG
OSD Color = White:BG
Battery Icon Color = White:Transparent
Menu Color = Transparent:Transparent
Reader Color = Transparent:Grey
Ricoh CA1 Mode = Off
Flashlight = Off
Dump RAM on Alt +/- Press = Off
Raw in Dir with JPEG = Off
Raw File Prefix = CRW_
Raw File Extension = .CRW
Current Text File = 'A/VERSION.TXT'
Text File Position = 22089
Sokoban Level = 0
Show Clock = Seconds
Clock Position = 318,0
Enable Autoscroll = Off
Autoscroll Delay (sec) = 2
Text Font File = 'A/CHDK/FONTS/GEOR14B.RBF'
Text File Codepage = Win1251
Show Splash Screen on Load = On
Histogram Color 2 = White:Red
Draw Zebra = On
Zebra Mode = Solid
Zebra Restore Screen = On
Zebra Restore OSD = Off
Zebra OverExposure Threshold = 1
Zebra UnderExposure Threshold = 0
Zebra Color = Transparent:Red
Draw OSD over Zebra = Histo
User Menu as Root = Off
Zoom Value = EFL
Use Zoom Buttons for MF = On
Raw - Save first only = Off
Text Reader - Wrap by Words = Off
Menu Symbol RBF File = 'A/CHDK/SYMBOLS/icon_10.rbf'
<ALT> Mode Button = 12
Language File = ''
Font Code Page = Win1251
Menu RBF Font File = ''
Disable LCD Shutdown = Alt
Show Grid Lines = Off
Grid Lines File = 'A/CHDK/GRIDS/SPORTS.GRD'
Raw Noise Reduction = Auto
Override Grid Color = On
Grid Color = Transparent:BG
Canon Subj. Dist. as Near Limit = Off
Use EXIF Subj. Dist. (PC65) = Off
Show Subj. Dist. in Misc. = On
Show Near Limit in Misc. = On
Show Far Limit in Misc. = On
Show Hyperfocal Dist. in Misc. = On
Show Depth of Field in Misc. = On
Show in review = 0
Show Zoom = On
Show 'Real' Aperture = On
Show 'Real' ISO = On
Show 'Market' ISO = On
Show ISO only in AutoISO Mode = Off
Show St Exposure Ev (Tv+Av) = Off
Show Measured EV (Bv+Sv) = Off
Show Measured Bv = Off
Show Set Bv (Brightness Value) = On
Show OverExposure Value (No Flash) = Off
Show Scene Luminance = Off
Video Mode = Bitrate
Video Quality = 84
Video Bitrate = 1x
Override Tv (Shutter Speed) Value = 1/25000
Tv override Factor = Off
Overide Av (Aperture) Value = 0
Overide ISO Value = 0
ISO Override Factor = Off
Overide Subj. Distance Value = 968
Overide Subj. Distance Factor = Off
Tv Bracket Value = Off
Av Bracket Value = Off
ISO Bracket Value = 0
ISO Bracket Factor = Off
Subj. Distance Bracket Value = 0
Subj. Distance Bracket Factor = Off
Bracketing Type = +/-
Recalc Exposure = Off
Tv Exposure Recalc Order = 2
Av Exposure Recalc Order = 1
ISO Exposure Recalc Order = 3
Script Autostart = Off
Remote Enable (USB) = Off
Show Canon Overexposure Value = Off
Clear Override Values on Startup = On
Show OSD in Review Mode = Off
Subject Distance from Lens = Off
Clear bracket on Startup = On
RGB Zebra (Overexposure only) = Off
ND Filter State = Off
Show Histo Ev Grid = Off
OSD Warning Color = Transparent:BG
Remaining Space Icon Color = Transparent:BG
Show Remaining Space Icon = Off
Remaining Space Icon pos = 260,0
Show Filespace in Percent = Off
Show Filespace in MB = On
Filespace Text Position = 128,0
Show Remaining RAW = On
RAW Mode Position = 302,220
Show RAW State = On
Show Values in Video = Off
Tv (Shutter Speed) enum type = Ev Step
User Menu Enable = 0
User Menu vars item 0 = 301
User Menu vars item 1 = 301
User Menu vars item 2 = 301
User Menu vars item 3 = 301
User Menu vars item 4 = 301
User Menu vars item 5 = 301
User Menu vars item 6 = 301
User Menu vars item 7 = 301
User Menu vars item 8 = 301
User Menu vars item 9 = 301
User Menu vars item 10 = 301
User Menu vars item 11 = 301
User Menu vars item 12 = 301
User Menu vars item 13 = 301
Zoom Scale = 100
Show Space Bar = Horizontal
Space Bar Size = 1/2
Space Bar ver pos = 353,0
Space Bar horiz pos = 0,233
Space Bar Width = 3
Space Percent Threshold = 10
Space MB Threshold = 20
Space Warning Type = Percent
Remaining RAW Threshold = 0
Enable Optical Zoom for Video = On
Clock Format = 24h
Clock PM Indicator = PM
Show Clock on Shutter Halfpress = Seconds
Enable Custom AutoISO = Off
AutoISO Minimal Shutter Speed = Auto
AutoISO User Factor = 5
AutoISO IS Factor = 2
AutoISO Max ISO HI (x10) = 55
AutoISO Max ISO AUTO (x10) = 33
AutoISO Min ISO (x10) = 5
Menu Title color = Black:White
Menu Cursor color = White:Red
Center Menu = On
Mute on zoom = Off
Bad Pixel Removal = Off
Video Af Key = ?
Osd Color Override = Transparent:BG
Override Disable = Off
Override Disable All = On
Hide Osd In Playback = On
Save Raw In Video = On
Show Movie Time = Don't
Show Movie Refresh = 1
Mode Video Pos = 158,142
Clear Video = Off
Fast Ev = Off
Fast Ev Step = 1/3 Ev
Mode Ev Pos = 38,110
Menu Symbol Enable = On
Menu Symbol Color = Transparent:Transparent
Curve File = ''
Curve Enable = None
Edge Overlay Enable = Off
Edge Overlay Thresh = 40
Edge Overlay Color = Transparent:Transparent
Synch Enable = Off
Synch Delay Enable = Off
Synch Delay Value = 100
Synch Delay Coarse Value = 0
Script File = 'A/CHDK/SCRIPTS/EXAMPLES/EGGTIMER.BAS'
Mem View Addr Init = 4096
Save Raw In Sports = Off
Save Raw In Burst = Off
Save Raw In Ev Bracketing = Off
Save Raw In Timer = Off
Raw Exceptions Warn = On
Menu Select First Entry = On
Fast Video Control = Off
Show Temperature = Optical
Temperature Position = 286,76
Video Quality Control = On
Remote zoom enable = Off
Zoom timeout = 5
Start sound = On
Sub batch prefix = SND_
Sub batch ext = .CRW
Sub in_dark value = 30
Sub out_dark value = 0
Debug display = None
Script param save = Off
Video EV display = 208,210
Zoom Value = 0
Zoom Override = Off
Clear Zoom Override = On
Unknown entry = 0