Runtime Error "9" Subscript Out Of Range

[kookie]

When a website is opened, a message comes on the screen saying
"run-time error "9" subscript out of range"
However, if I go to internet options: advanced and I unclick the "enable third party browser extensions" the message will disappear.
The problem with that is, that I am also unable to use the Yahoo Companion toolbar or any other extra toolbar available.
Does anyone know how I can use the third party browser option without getting the run-time error message?
Thanks

[balamm]

try going into program files/Internet explorer/ IE6setup.exe and reinstall it all. Then restart and see if it still does it.