Canon scanner driver problem
 

I bought a Canon 5200F scanner recently. After installing the drivers and
software, I plugged the scanner in via USB2 and everything worked as it
should. I shut down the computer and later that day tried using it again.
This time no scanner was recognised in any application I tried, including
the ArcSoft PhotoStudio included with the scanner. If I tried to scan a
TWAIN error occurred. Device Manager showed a USB connection with the
yellow '!' but no scanners. I tried re-installing the drivers, but the
software told me they were already installed, so I deleted them from device
manager from the USB connection with the yellow '!'. After rebooting I
tried installing the drivers again, and it appeared to extract from the zip.
file. There was no prompt to reboot, and nothing appeared to have happened.
After a reboot there was still nothing.
I then installed the drivers onto a laptop and everything worked fine and
still does after 3 days. I manually copied all of the drivers that the
laptop showed in device manager onto the problem pc but still nothing..

The problem pc is an AMD2800 512RAM win2000pro SP3 with all latest updates.
I have tried without any antivirus and firewall. The laptop also is
win2000pro SP3..

Any ideas??

Thanks
Jeff