1Gb ram on win98/2k dual boot sys

I am currently using a a dual boot system with win 98 and win 2k on a pc that has 1 GB of ram. On the win 98 side i am getting a lot of bsod, with vxd errors is that a memory problem? Is there any way around this besides reducing ram to 512Mb? Win 2k side runs fine although it has checked the HD for consistency a couple of times during boot-up.