I'm trying out Jitter on an HP Touchsmart (the iMac knockoff with the touchscreen from HP) that I "downgraded" from Vista64 to Vista32. I installed the latest version of Quicktime, but still I can't get my jit.qt.grab object to initialize the webcam. When I try to open I get the following errors:

"could not create video channel -9405" "error opening device for grab."

The webcam is showing up in Device Manager, and works from other applications as a standard webcam.

I don't imagine anyone has any tips?