I've had this problem for some time now and I can't think of anything else to do. I can look at any video file from my video camera and see a thumbnail. For any video file I have edited with any of the video programs I have, I cannot get a video file thumbnail and DEP shuts down windows explorer.If I use the list function, I can at least hold the folder open but it shuts down the moment I select a file. I have downloaded the K-Lite codex pak and tried to wash stuff through windows movie maker without success. This all seems to be something to do with .AVI files as far as I can tell. I even sat here one night and crashed it about 25 or 30 times and sent the trouble reports to the apparently deaf microsoft corp. I never hear back from them nor does it indicate there is a problem.
I have always hated the DEP feature for XP with the service pack. On my old machine I was able to disable it (not for this reason) and all went well. On this machine it was bundled in and disabling it caused a ton of problems that eventually caused me to wipe everything and do a clean install with the original configuration but the problem persists.
So, waddaya think-is exorcism an option?
I have an HP with a P4, 1.5 Gig ram, 200 gig on the main drive and 150 Gig on the drive I edit on. The P4 processor is a dual core with the 630 chipset clocking at 3.0