It installs and worked previously but has stopped working altogether. Mac Error Message pops up immediately when I try to run it; not sure if its helpful but here is a piece of the error window.
Could it be my graphics card? I upgraded recently to a NVIDIA GeForce GT 330M 512 MB
Intel HD Graphics 288 MB
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Signal: Illegal instruction: 4
Termination Reason: Namespace SIGNAL, Code 0x4
Terminating Process: exc handler [0]