David;
Try this:
Open IE | Tools | Internet Options | Advanced tab |
CHECK:
Disable script debugging
[Specifies whether you want to turn off your script debugger, if one is installed. Script
debuggers are used by Web site developers to test programs and scripts on their Web
pages.]
UNCheck:
Display a notification about every script error
[Specifies whether to display the actual script errors when a page does not appear
properly due to problems with its scripting. This feature is off by default, but is useful
to developers when testing Web pages.]
Apply | OK