I recently began editing video with Vegas 9 and after about week or two of use one day the preview window became VERY choppy, pixelated, and slow. What was really strange was that none of the settings in the computer or vegas had been changed. I read some stuff and people said to change it to "high priority" through the task manager so I tried that. When I did that, it was still very pixleated but it wasnt slow, also it was still a little choppy but there werent nearly as many frames dropped. BTW Now that I changed it to "high priority" when the video is stoped or paused the image in the preview window is crystal clear, before I changed this setting (once this problem started) it wasnt.
I have NO CLUE whats going on, I talked to a friend and they said it could be bad ram but I dunno. PLEASE HELP! Thanks guys.