Okay um I was wondering if anyone knew what my problem is. My computer used to be able to run Guild Wars without lag and CS with OpenGL as renderer but for some reason after I did a systems recovery it says OpenGl is not supported and Guild Wars freezes every few seconds. Anyone know what my computer's problem is? I have a GeForce 440 MX.

I have had problems too when doing a system recovery, as some hidden files just aren't recovered (at least with my computer) I would back up and export your files...then uninstall and then re-install the software on your computer.
This should do the trick! If not you know it is a hardware issue.