You upgraded your laptop from Windows XP or Windows Vista to Windows 7 correct?. According to Asus Support here: ASUSTeK Computer Inc. -Support- Drivers and Download F5R there are no drivers for Windows 7 for your Laptop. There is a new BIOS update but it has to do with reinstalling Windows XP from Windows VIsta on your Laptop.
You can try using Windows Vista driver according to MS Forum but not sure if this will work on a Laptop.Driver for ATi Radeon Xpress 1100 for windows 7
Best bet is to purchase a New laptop that is still supported.