IE Problem... Surprise!!!

i have a machine that is running IE on it. problem is that if you click a link on a webpage or choose to open link in new window, it doesn't do anything.

any suggestions... (besides firefox because it's not an option here)

windows updates are done... security settings are back to medium... still can't open a link in a new window...

any other suggestions??
thanks so far.

reinstall IE?

Do you have a popup blocker installed?

i guess it is on by default with xp sp2... i turned it off and still have the problem... it worked fine monday... started acting weird yesterday.