hi, well this problem is with my sig rigI have AOA audio extractor which today couldnt do anything with any of the video files i was using, I then downloaded another audio extractor hoping it would do the job. Once installed it needed to restart so i did. When vista rebooted, I got a registry error.. SO i decided to quickly uninstall it before it did anything more. Now when the OS boots up it works fine for about a minute then when I go to do anything involving the task bar or windows explorer it just stops doing anything at all. I have run a virus scan. nothing found with AVG, though i suspect it has nothing to do with a virus anyway. Seems to me like a driver issue.