My source for computer maintnenace says "... The message is generated by a feature in Internet Explorer that is seldom needed by people like you and me. The feature helps the people who create Web pages find errors in them. Each time it finds an error, the message that you're seeing is generated. As you've learned, most Web pages have lots of errors. So there are lots of error messages.
Turning off this feature is completely safe and easy. I recommend it.
Here's how: With your Web browser open and on the screen, click on the menu item labeled Tools. Then select Internet Options. Click on the tab labeled Advanced.
You'll see a long list of items, all with check boxes on the left. Find the item that says "disable script debugging" and place a check mark in the box.
That's all there is to it. You'll no longer be bugged by script debugging. "