UltraVNC

Is there a way to turn this check off?

Hi,

I installed Windows 7 on my PC and I'm using UltraVNC as VNC server.
I also downloaded the Vista add-on files but when I send the CAD command to the VNC server, the command arrives about 1 minulte to late.

I already had exactly the same problem with a Windows Vista PC and I don't know what to ...