That may be something I just had happen. I have been trying to see what the "best" way is to import a CMX EDL into VV 4 and have been trying to import a 70 minute piece, the piece has several stills in it. At first I was letting VV find the material but it would only do about 10 -15 cuts and, for whatever reason, just duplicated the material in those cuts for every cut in the piece. So then I tired the "replace" option, just 'replace' with the same file. It was working fine - but after about 20 minutes of manually replacing I got to a section with several stills and after selecting the location and file for the third still in that section VV retuned an error about the video buffer having a fault so I clicked "ok" and then got an error of "The still can not be found", when I clicked "ok" I got another error saying the same thing - I clicked "ok" again and the VV error about 'an error has occured and Vegas will now shut down, please save a copy of you project' blah blah. But you can not save unless you click "ok" on the error box, which I did and than I got another error to the effect of Vegas has crashed - goodbye. (The actual dunp from Vegas I did not save, but the dump in the XP Event logs file from the crash is this: The COM+ Event System detected a bad return code during its internal processing. HRESULT was 80070005 from line 44 of d:\nt\com\com1x\src\events\tier1\eventsystemobj.cpp. )

So maybe this is caused by this image import problem? It could be a WinXp Pro issue as well, but in my case I got an error first about the Vegas Video buffer, not any sort of windows error. But it did happen during still import.