Update: used a disk image to put the PC back to how it was a little while before I installed ME. Battlefront once again appears to be working fine (fingers crossed). Installing ME must have changed something, reluctant to bother reinstalling it...
Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.