Debug is bugging me

[suetum]

I run Windows XP home edition and Norton antivirus on an inspiron laptop. Recently, when I try to forward email or when I go to certain internet sites, i get ERROR codes such as
"Runtime error has occured" - do you wish to Debug? or
"Line 650 error - Validation is undefined" do you wish to Debug?
I've tried saying "yes" and it runs through some processes and tried saying "yes" and it says it can't debug and I hit cancel. I usually just hit "no". What exactly is a "Debug" and how can I stop this from happening every few minutes? Please help!

[pip22]

'Debug' means to look for errors in lines of code, in this case it's HTML scripting code and some web-pages do have errors in them. Normally, the author of the web-page would run a 'debugging' program which can highlight these errors.
To suppress the debug prompts, do this:

1. Open IE->Tools->Internet Options
2. Click 'Advanced' tab
3. Scroll down to 'Browsing' section.
4. The follwing two options should be enabled (ticked):
"Disable script debugging (Internet Explorer)"
"Disable script debugging (Other)"

The next option below those two is "Display notification about every script error". If you disable this (no tick) you won't be told when a page contains errors. So you may wish to enable it (tick). This setting is entirely separate from the debug prompt options. It's just a matter of personal preference. You're simply telling IE whether or not you wish to be told about page errors. Many people choose to enable it so when a page doesn't load properly or some elements are missing, at least they'll know whether or not it's a script error on the page that's causing it.

[suetum]

Thank you so much for taking the time and fixing my problem! You ROCK!
Regards to the UK from the USA.