Further to my post above, I THINK I've managed to fix the situation by "downgrading" MDAC from the security update to version 2.8.
I used the MDAC Component Checker [url=http://www.zuggsoft.com/data/ ...
Just wanted to say that I'm experiencing exactly the same issue as jpolen2. I'm also using Win98SE and have downloaded the MDAC 2.8 security update from the Windows Update site. In addition to the p ...