Internet Explorer Script Error

I just had to do a full restore on my old desktop
Compaq Presario Win 98 SE
I did all of the the Critical Windows updates
The problem I have is that when I attempt to go to some sites (Ebay in particular) I get this message

Internet Explorer Script Error
An error has occured in the script on this page
Line 20
Char 1
Error 'ebay' is undefined
Code 0
URL http://ebay.com/
Do you want to continue running scripts on this page?

Since I am an ebay trading assistant this is not working for me. I really need help with this one. If anyone has any ideas I would appreciate hearing them. When I get this message I have tried clicking "yes" and clicking "no" either way the box disappears and comes back immediately. It will do this about 8-10 times then stay gone. It doesn't do this with all sites but always does it with ebay.

 

There are three reasons why these problems occur. The first is that the web page author made some programming error. The second reason may be that you are running a pop-up killer that closes pop-up windows so fast that the script on the web page fails. The third is that you might have some adware or spyware installed on your computer that opens the script error pop-ups.

1. Open Internet Explorer.

2. Click on Tools, then on Internet Options.

3. Click on the Advanced tab.

4. Look for the "Disable script debugging" line and put a check mark in the box.

5. Now look for the "Display a notification about every script error" line and remove the check mark in the box.

You may be prompted to reboot afterwards.