wierd networking problem

I'm not sure whether this is software or hardware, so please excuse the cross post.
I have 2 pcs at home in a peer to peer network, connected by a crosswired cable. When I try to access network drives from one pc to the other the pc resets itself without warning. I can access the list of shared drives without this happening but as soon as i open a drive or folder, click... beep... hardware reset, as if someone had pressed the reset button.

This only happens in one direction - ie I can access files on my computer from the one that resets when I try to connect to it without problems, it's only when I try to access the other computer from mine that it resets itself



via based gigabyte athlon motherboard running latest via 4 in 1 etc
amd 1.2ghz tbird @133 fsb
512 mb pc133
40 gig ata 100 hd
Geforce 2 pro 64meg
kingston network card
bt speedway isdn ta
onboard sound
ultra wide scsi card with cdr and scanner connected
actal speedtouch adsl modem

Running win2k pro



Other than this problem the sysytem seems fine. Anyone got any ideas what could be causing this??