First try removing the ISA card to see if it will work. I had a similar problem with an ISA modem.  It would freeze up my PCI network card. If that doesn't work try removing the PCI video card.  My next question is whether the BIOS on such an old computer is going to support USB PCI?

>Just reading a BusLink manual - they recommend that you place the software
>driver on the computer first through install/setup of the software.
>Shutdown and then add the USB card.  On the reboot - they say depending on
>BIOS and system - Some Win98SE's will see the card and install the previous
>installed software drivers OR that you should CANCEL the hardware detect and
>then go through the software install a second time.
>
>This is for a Buslink 5 port USB 2.0 card that I was getting the
>information from.
>
>Richard A. Freeman
>
>
>>>> [log in to unmask] 02/21/2003 9:28:20 PM >>>
>I ran into a problem on an older (P166) computer with Windows 98SE. The
>Win98SE is a clean install with no application software yet installed.
>When I add a USB card, the system detects the new hardware properly, but
>when it tries to add the driver, I hangs. I tried several time to get it
>installed, but no luck. The same card installed on a very similar P120
>system with no such problems. I can't finish the boot when the board is
>in place because Win98 insists on adding the drivers and we are back to
>the lockup again. Should I assign specific IRQs to the PCI slot in BIOS?
>There is a Diamond Stealth 64 PCI video, and an ISA Microsoft sound
>board in it. Any suggestions?
>
>

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