I Just installed the 2.1 software, added my fixtures, 6 Intimidator 455 IRC, 4 Blizzard Blade QFX and some RGBW LED Pars<BR>My 3d visualizer crashes immediately upon trying to open it. Pc is Lenovo Win7 PC, Windows 7 Service Pack 1, 64-bit Operating System, Processor is Intel(R) Pentium(R) CPU B950 @2.10GHz, Any Help would be Greatly Appreciated!!