I had the same problem, because I also run two monitors. One of my LCDs is 20" and the other is 23", and the resolutions are also different. The moment I down re-zed the bigger screen to the same resolution as the 20" - 1680x1050, the redcine worked OK.
The alternative was to go into my Nvidia Properties and make the 23" the PRIMARY screen - the REDCINE would then open up there, and work OK, with the 20" screen now being a spare...
This worked in my case - hope it is somewhat helpful