I am also having this issue, this used to work on the same computer on Vista, just not on Windows 7 Ultimate. I've installed all the new drivers etc.
System specs:
Operating System: Windows 7 Ultimate 64-bit
System Manufacturer: Dell Inc.
System Model: Inspiron 1545
BIOS: Phoenix ROM BIOS PLUS Version 1.10 A01
Processor: Intel® Core2 Duo CPU T5800 @ 2.00GHz (2 CPUs), ~2.0GHz
Memory: 3072MB RAM
Available OS Memory: 3034MB RAM
Page File: 3332MB used, 2734MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
Chip type: Mobile Intel® 4 Series Express Chipset Family (Yes, I know, buy nvidia)
