Hi,
First off, thanks for the great firmware!
I've been playing with allbest-ixus850_sd800-100e-50 on my SD800 (firmware 1.00E), and I noticed that the video settings don't work. The raw settings and other things work fine, but I've tried all the bitrate/quality settings, and I can't get the camera to record using anything other than the standard 2MB/sec video compression. Also, the optical zoom setting doesn't function.
I also have a SD700, so for comparison I tried allbest-ixus800_sd700-100b-50 on that, and the video compression settings work fine, so I don't think I'm using it wrong.

Thanks for any help!
Cheers,
Dave