right click on your desktop icon and left click on Troubleshoot Compatability, see if it fixes it
Thanks for your prompt suggestion. I've actually tried that, plus I've tried selecting "run as administrator" to no avail.
Perhaps, it's just not compatible with Windows 7.
My PC is: Windows 7 Ulimate 64-bit, Intel Core 2 Quad Cpu Q8200 @ 2.33GHz, 6Gig Ram, NVIDIA GeForce GTS 250...maybe it's something is not compatible amongst that lot.