impossible to install monitor

Ok, could someone PLEASE help me coz i'm going nuts here.:mad:
I cannot install the drivers for my monitor with windows 7. I don't get it. I mean with windows xp you just go to the advanced settings of the display and you can change the driver of the monitor. Windows 7 doesn't let me! The boxes to change those settings are always greyed out!

My graphics card (ATI Radeon 9500) is recognized but apparently doesn't function properly, there are no drivers for 7 and windows vista and xp drivers neither work properly. Could this be the reason why i can't change the monitor driver?

Xp was so much simpler...:frown:

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