Windows 7 - monitor keeps switching to duel

i was wondering if someone can help, i tried everything cleaninstall,micro update but nothing seem to work, my monitor keeps switching to duel monitors,on the change the appearance of your display page in control panel,it shows 1 montior but when it switches it shows duel monitors and the resolution changes to 800x600 i select only 1 montior and gos back to single it might stay that way for hrs then it might switch in a few min. i have it set on 1280x800 have tried it on lower resolution but it still switches , i have a hp compaq cq50 laptop intel {R} 4 series express chipset windows 7 os , and i never had it hook up to any other monitor hope some 1 can help .

and thanks in advance

Hello twojb7,

Welcome to Seven Forums.

Hit winlogokey+p and see if that is set to computer only.

Hope this helps.

Gary

yes i tried it and its set on computer only thanks for reply