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uninstall the program spamfighter.
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agree with that And Reinstall the Video Driver. Junk the existing Copy
The copy you'll need is either NVIDIA Forceware 186.18 for a Geforce type card
Or,ATI Catalyst Drivers 9.6 Both are Universal Drivers [img]/forums/images/graemlins/smile.gif[/img]
There are different versions for different Operating systems
Visit
http://filehippo.com/software/drivers/ to make your choice