IE 6.0 crashing XP

I've developed a problem when launching INternet Explorer
6.0 where XP-Home crashes. IE won't launch, all other apps
inaccessible, computer goes into the tank chugging and
chirping.

Tried control panel add/remove programs for IE with limited
success, but the problem always returns and now even that
solution doesn't work.

Used Ad-aware program to clean out all the downloaded
advertising garbage that's been accumulated...NO help.

Any experience with this problem and a solution?

Thanks...