I think you can try to use this modified driver from the originals I use in desktop and work. Are the ati drivers but him modified and support mobile chips. I not sure if support the 7500 but you can try.
Are in
www.megagames.com, the name of the driver is:
'ati omega drivers'. If you scrool down the megagame page you found a section software inside are this driver
http://www.megagames.com/news/html/software/atiomegadrivers2597-412beta.shtmlonly this driver support the mobile chipsets the original ati drivers no
