Run a full scan with both (separately) once downloaded, installed and updated.
Update your graphics card drivers to their latest.
Click on the Start rb: ► Control Panel ► Programs ► Uninstall a program ► Uninstall ATI related stuff. Delete remnants of its driver using Driver Sweeper
Install the latest from the manufacturers website.
Run the System File Checker that scans the of all protected Windows 7 system files and replaces incorrect corrupted, changed/modified, or damaged versions with the correct versions if possible:
Thank you very much. so far so good. i have run disc diag all good. removed mcafee all good. tied to download sweeper couldnt find it free. but none the less hasnt played up since removing mcafee. will keep playing and see what happens