I'll let you know what I do, if I do, and how it goes. Thank you again.
1. Running the Setup disk over the existing version caveats I've run across and I consider this practice to generally cause more problems than cures -- depending on what other software is installed. The following is probably only a drop in the bucket of what could happen. The only time I would recommend its use is as a very last resort:
a. Before reinstalling Windows when either or both IE6.0 and OE6.0 has been installed, it/they must be removed first. This process and why is explained in (Q312474).
b. "Unable to Uninstall Internet Explorer After Windows 98 Setup (Q222564)."
c. If it is possible a computer is infected with a boot-sector virus or for that matter any virus, Trojans, or worms, an antiviral program containing the latest virus signatures should be run to check a system before any attempt at reinstalling is attempted.
d. When Win9x is reinstalled over itself (for example, if you do not use the format or parallel installation methods), "OE may append new configurations and mail to the end of existing x.dbx files (Q283205)" and when next used, it displays only the mail received afterwards and it appears as if all of the older mail is lost.
2. Please read the Microsoft Knowledge Base article, "How to Reinstall Windows 98 (Q250928) and take some precautions before hand."