Yes, well there you are, typical Norton headache.
I know you will probably have subscribed to Norton but I recommend that you cut your losses and totally uninstall it. The uninstall instructions are
here although they refer to Windows XP rather than 98, you will have to tailor them to suit 98. e.g. item 1 refers to ERUNT which will not backup the 98 registry as it is intended for New Tech systems.
But first you should download a suitable FREE antivirus program which you can install after getting rid of Norton. I suggest AVAST from
here.
But then you might want to persevere with Norton - your call.
Good luck