I had this problem before but now no matter what I do, I can't fix it.
These red screens pop up at the end of some of the clips in the timeline. I don't know what causes them but when I try to just watch the clips in vegas it will end up freezing. The clips are recorded from my PS3 by a Hauppauge HD PVR. It's not the PVR because the clips play fine in VLC/WMP/After Effects but not in vegas. It's impossible to edit them and it's getting really annoying. If changed my RAM preview to 0 but that didn't make a difference.
I have a quad core computer with 4gb ram, my graphics card is:
512MB Onboard ATI Radeon HD 3200 GPU - Hybrid CrossFireX Technology
512MB ATI Radeon HD4550 (Direct X10.1, PCI Express 2.0)
I'm not sure if it's good enough for vegas but I can play the latest games on it without problems.
Can anyone help me out?