Hi,
I have this used Acer Aspire 4530 running Windows 7 (32 bit) and it has given me no problems until now. When I boot, everything loads and runs fine, but I now get an error message for the coprocessor stating:
The drivers for this device are not installed. (Code 28) There is no driver selected for the device information set or element. To find a driver for this device, click Update Driver. 
(Location: PCI bus 0, device 1, function 3)
When I have it search my hard drive and the www, it does not find any drivers. I am at a standstill. My laptop still works and all programs run just fine, but if I am supposed to have an installed driver for the coprocessor, then I would like to install it. Any help would be greatly appreciated. Thanks 