This is an old problem that I never got round to fixing...
I modded my xbox and put a 120gig HDD in it. The HDD had been in use in my PC but only for backups, and not for very long. Got the Xbox working fine and transferred my games to the HDD, got it up and running in my cabinet, worked brilliantly...
However I noticed the colours on a certain screen in Soul Calibur 2 were corrupt, for a brief time after hitting start to return to the title screen. This was no real biggie, but I tried re-transferring it over but to no avail.
The next thing that happened is games started randomly stopping, and saying 'cannot read disc' or words to that effect...as I wasn't using the DVD drive this points to a hard drive issue.
Just curious if anyone has had or heard of problems like this? I tried formatting it with the xbox but no joy (how does an xbox format a drive so quick?). I wondered if I should put the drive back in a PC and format/check it? It just seemed wierd to me as the HDD was pretty new...
Edit: I realise I haven't given any specific details, I guess if it is a hard drive problem it the same would occur regardless of mod chip etc. However IIRC I have an Xecuter chip, and UnleashX dashboard.