I just started using NVE2 and found out that I needed to down load an older driver (V1.0.8) for my Nvidia GF4 based card to overcome the 'White Bar' problem.
That now works fine. However, since installing this driver, NVE2 will not recognize a video input for capture until I initiate a capture with other capture software (in my case, Sonic My DVD). It's like having to prime a water pump.
This is annoying, but not critical. But, if anyone has any suggested fixes, please let me know.