Hello, I am trying to test out the Multiplicity program on Windows Vista Ultimate 64 bit. I have the program (trial) on my main computer and another computer also using Vista Ultimate 64 bit. When I try to move my mouse to the Secondary Computer, the mouse starts jumping all over the place. Also, I get errors that Multiplicity has stopped responding and/or has encountered a problem and needs to close. The two files involved in Event Viewer are Multipl.exe and MFC42u.dll. I need to figure this out before I spend the money for the full version. I have turned off my Virus and Firewall software but still encounter this issue. Can someone please give me information. Thank you.