by raf » Thu Mar 24, 2011 11:08 pm
This might be an UltraVNC configuration problem.
Try this: right click the UltraVNC icon (eye) in the taskbar (notification area), select Properties. What options do you have selected?
Poll Foreground Window / Poll Window Cursor might help.
Do you have the "System HookDll" enabled? How about "Video Hook Driver".
Raf.