Recently I keep getting high CPU usage whenever I play anything inSony Vegas Pro 12. I've never had the problem before it's onlystarted to happen recently. When I preview my video it is reallylaggy and the audio playback is awful. It's so bad I can't even seewhat's happening because it's so choppy. I have not changed anypreview settings, and the problem was never there before. Usually, Ican use the internet, play songs on windows media and edit in SV andmy PC was fine, but now whenever I play anything it it horribly laggy, and task manager says the CPUusage is 100%.
If I play only an audio in SVP it plays fine with only about 3%CPU utilisation, but the instant I try to play video with audio itgoes to 100% CPU...
I don't know what to do, any ideas?
Windows 8 64 bit
SVP 12 64bit
CPU: i5 processor, 2.60GHz (Turbo boost up to 3.2)
Drive: 750GB HDD