please help me

[757200ba]

Hello everybody.I have a problem, recently i won a 9700 pro but there is a problem.
the computer reebots fine gets into windows and everything works, even fs9 runs ok, but everytime i start games like Medal of Honor for eg. lines and forms apeear and wen i get out of the game. windows has vertical colored  lines colored squares and the icons look like they only have 24 colors.Wen i reboot it some times it gets ok other times it doesnt i need to reebot until it gets ok.i have the 5.3 ati drivers on,win xp pro sp2 dx9c.
Help me

Asrock K7VT4A Pro
Athlon xp 2400+
1gb ram
ac97
maxtor 80 gb
western digital 80gb
ati 9700 pro
xp professional sp2

[Joe_D]

What do you mean you "won" it?
Did you but it on ebay?

Is sounds to me like the card might be on its way out.... has heat damage, etc.