I have been running windowblinds(and most other OD products) on dual monitors for about 2 yrs now...Have had very few problems doing so. Most of the problems I have experienced have been video card settings, not OD settings...sometimes you just gotta dig deep into your card's settings to tell it to do what you want it to..wish I could help you more, but..."I'm an artist, Jim - not a doctor!" Just wanted to let you know that it's not likely a WB issue.(though I'm not familiar w/ your brand of video card.)
Good luck!
