Resurrecting this ancient thread. I just ran into the same problem tonight, except my DAW is a totally fresh build and has Sonar 5PE only. So if this problem was fixed in 4.02 why then am I experiencing the same problem??
I've sifted through dozens of posts on this subject but so far no specific fix is discussed, only that "allegedly" 4.02 fixed the problem, and that setting the video resolution to 32-bit can sometimes fix the problem. (huh???)
Anybody recall what the real issue or fix was?? I can't find anything on the forum as of yet....
Sonic