Performance Alert: High CPU Usage by IE 92%

Practically every time I'm online I get that warming:  Performance Alert: High CPU Usage by IE 92% of at Least 1 CPU.  Internet searches, incl this forum, have provided varying solutions.  It's REALLY slowing down my computer (DELL/Vista) & wasting my time & making me crazy.  Help!!  Also, I recently did that hard drive restore (?) where all files are deleted but for the originals & it has not helped.