Show Cue System

I have got SCS11 Pro running on my XP SP3 laptop but cannot get it to run properly on the desktop pc I want to leave at the community theatre for the next show which I want to use SC11 Pro to run sound, video and trigger lighting cues by MIDI.

The pc is Running Win7 Professional, processor is Intel Core2 Quad CPU Q8400 @ 2.66GHZ, 4GB memory, 64 bit.

SCS11 opens in demo and Pro but the same error message appears when I select New >
A program error was detected
Error Message: Invalid memory access
Error Code: -1073741819
Code Address: 1983370045
Target Address: 1542949479
Sourcecode file: modDevMapHandler.pbi
Sourcecode line: 2391
Thread: #1
Time: 4141
TraceLines: 0,0,0
SCS version: 11.1.6

What am I doing wrong please.

Could you email me a diagnostic dump file? You can create this file by starting SCS and selecting 'Create Diagnostic Dump File' from the drop-down menu displayed when you click the Help button in the main window. The file will be saved in a folder named "SCS Dumps" under "Documents" or "My Documents".