Found a pretty ugly bug.
When PX is installed it replaces the existing Arial Bold font in the font directory. However it only places a link to it (that resides in the EVGA PX folder) which doesn't work.
This results in web pages showing Arial Black when Arial Bold is called in CSS. Since Arial Bold is used a lot across the internet, this changes things drastically.
Uninstalling PX completely removes Arial Bold from both the EVGA PX folder, and the Windows Font folder.
That isn't very cool.
In order to fix this I had to reinstall PX, go into that folder and copy/paste Arial Bold into another folder.
Uninstall PX again.
Restart.
Reinstall Arial Bold.
Until this is fixed I cannot install PX on my system. I'm a web developer first and a gamer second. This bug made all websites that I've created look wrong, and pretty much every other site out there, like Google News. While installed I tried to fix the issue but it always reverts back to a broken link from my font folder to EVGA PX folder. Uninstalling (and the fix above) was the only pure fix.
Thanks guys.