Welcome to the forum charlie,
So, no Windows 98 disk huh? You're going to struggle without one I'm afraid

It sounds like your installation has become corrupt in some way and unfortunately the only
real cure for this within Windows 98 is to carry out a repair install (install the operating system over the top again).
Is there no-one you can think of that can lend you a Windows 98 disc? I would think this is not very feasible as it's such an old OS.