Are you on the STEAM version or CD version?
Retail version, I was able to play earlier on this computer; I don't know what caused it to be like this but I guess I might have to do a full reinstall.
Here is a shortened version of a dxdiag
Manufacturer:
System manufacturer
Processor:
AMD Phenom II X4 955 Processor (4 CPUs), ~3.2GHz
Memory:
4096MB RAM
Hard Drive:
640 GB
Video Card:
ATI Radeon HD 5700 Series
Operating System:
Windows 7 Professional 64-bit (6.1, Build 7600) (7600.win7_gdr.100226-1909)
Yet I was able to play before, so I don't believe it is a hardware issue.
Edit:
The tools I have installed so far are OBMM, Wrye bash, OBSE and some plugins for it (Possibly the issue, any recommend course of action?)