screen turns sideways

[emptyhead]

hi ya guys ....here my problem sometimes when i am using my computer to play poker online (not for real money) my screen throws a wobbler and turns itself sideways,the only way i can fix it is doing a system restore has any one any thoughts on how to stop this happening.
emachines
2.50ghz
40gb
56k
128mb
w.xp
hope this info helps..not very good at these things

[Heywould3]

id bet its a driver problem.. i bet your video card has the ability to turn your display 90 degrees.. most modern cards do.. look for a setting in display properties.. sometimes called landscape but it might just be a 90 or 180 degree button

[emptyhead]

where do i find display properties?and what do i do withthem sorry im crap at this,its my sons computer

[redwudz]

Control Panel > Display > Settings > Advanced, then look around.

[smearbrick1]

where do i find display properties?and what do i do withthem sorry im crap at this,its my sons computer

You could always have your son fix it.

[emptyhead]

sorry i asked...