windows xp/ HP Scanjet 4400C problem

Just bought a new HP 760C computer. It runs windows XP. I also purchased a HP Scanjet 4400c at the same time. It says it is windows xp compatable and it came with version 3.12 software that says it is for Windows xp. After installing the scanner the computer won't boot up. It sticks on the HP Invent screen at the beginning. If I unhook the scanner usb cable then the computer boots on up. I tried both of these patches from HP:
SJ 658en.exe and
SJ 659en.exe
neither one fixed my problem.
The scanner scans ok but the buttons on the front don't work.
I figure this is driver problem, but can't find a driver on the HP site. Have not gotten any response from the HP site. It also makes it difficult, because this new computer is not connected to the internet. Please help!!!!!!!

 

Are these the links that you went to at hp?
http://www.hp.com/cgi-bin/cposupport/swindex.pl?p=hpscanjet428447&l=en&c=MicrosoftWindowsXP

 

That is the link I tried. Neither one worked.

 

I have a usb mouse and a usb keyboard attached in the two usb ports in the back. The scanner is plugged in a usb port on the front. I tried switching them around but it didn't make any difference. The usb ports appear to be working ok according to the device driver and system tools.

 

After the computer boots up, have you tried connecting your scanner to the port and then going to your control panel and "Add new hardware" to see if the computer will recognize the scanner. It would also prompt you for the driver which would either be in the directory where the software is loaded or on the disk itself.