helpp me interface bug

ok fist let me say plzzzz help me i have blender 2.5 the newest i checked and my grpihcs driver are up to date i have ati and i have good ram but the prolblome is blender has a interface bug let me explne ok
i open blender everything is fine at first then after a while some of blenders windows turn blank but whine i move my mouse over them thay come back but thay dissapir when i move my mouse i will try to post a screen shot after i get an ansewr it is really bothersome ps: i swich to windows 7 and then it happened i used 2.5 on windows xp and it never apped but i used blender 2.5 alpha on windows xp so i dont know helllppppppppppppppppp :(:(:(:(:(:(:(:(:(:(:(:(:(:spin:

plz help me