Only one core of my Q6600 is showing

[natethegr8]

After upgrading from Vista to Windows 7 (build 7000 x86) only one one core of my quad-core Q6600 is displaying in the task manager. I tried installing nForce drivers but that didn't help (MSI P6N Diamond). Does anyone know how to fix this?

 

[WR2]

Have you checked the Task Manager View-CPU History options? Having the One Graph, All CPUs option checked could cause that.

 

[natethegr8]

Have you checked the Task Manager View-CPU History options? Having the One Graph, All CPUs option checked could cause that.
[url]http://img232.imageshack.us/img232/7536/tm1ol6.th.jpg[/URL]

It wasn't that but thanks. I found out I had to change some options in the boot menu in msconfig.