Logitech Wingman Force USB driver deadlocks PC at 1GHz?

[madthumbs]

System Specs (thorough);
Enermaxx 350W P/S model EG-351P-VE
Abit Ka7 w/evaluation RY BIOS and VIA4 in 1 drivers
K7 700 w/900 core @ 850,1Ghz
3dfx Voodoo 5 5500agp
SbLive Value v2(optical out)
Realtek Ethernet card for Road Runner modem
Rockwell 56k v90 modem
Promise Ultra 66 IDE controller card
Goldfinger -Maximizer
Win98SE / Latest DX 8 beta

Kenwood 72x (sucks I know)
Creative 4224 CDRW (sucks too)
Toshiba/ IBM 6x DVD

Fellow's 4 port USB Hub
Microsoft natural keyboard PS/2
Microsoft Intellimouse Explorer USB (original)
HP Deskjet 812c USB
Intel PC cam USB
Logitech Wingman Force USB
Logitech Wingman Formula Force USB
Microsoft Sidewider Freestyle Pro
Cambridge Soundworks speakers

The problem;
Until I Chose PNP OS installed in the BIOS, I was not able to fully load windows98se over 900MHz cpu speed. However when I changed and reset the ISCD ( I think that's what it was) it would load fine. I went for a months with it at 1GHz with no problem until I went to get the Joystick to work. Upon loading the driver (as soon as I clicked the add button, the cpu froze, wouldn't shut off with front power button. I reinstalled the latest DX8 beta. I tried reinstalling the drivers with the managing software which made windows unloadable and seize the same way in normal mode. I went back to 850MHz and things are fine again now. I can't see any gaming advantage to running at 1GHz with a V5 5500 since its the bottleneck at around 800MHz, but this puzzles me. TIA for any help...