Yeah, that worked. Although, I think the network issue might've been my card. Still, the intermittent, 'folders/files not opening' thing is gone, too.
Now the only problem I'm having is getting a driver for the onboard that will do more than VGA @ 16 colors. The original installation had one. Not a big deal because of course it's only 2mb and all, but even at 16 colors I've been impressed that it passed mame .36 through on games like 1943 with 100% performance. Yeah, I know especially then GPU wasn't a big deal, but still. Then again, I was getting a strange backlighting effect, like if I'd turned up the brightness a bit, from the onboard when running black background games, so I'll probably just have to settle for using a PCI card.