Sounds like you need to do some adjustments in your monitor menu.
should have a button either on the side or bottom of the monitor to bring up an on screen menu so you can move the 'H Position' to where it should be
hope this helps

Thanks muf i pressed the auto button and its all better now, thanks a million for your help

No problem
I had a look at mine and turned the contrast down and my eyes don't hurt as much now and I doubt that I would have looked if you hadn't asked