IE7 IS NOT RESPONDING, TAKING UP 99% OF CPU

WHEN I OPEN UP IE7 THE COMPUTER STOPS RESPONDING. IN TASK MANGR I NOTICED THAT THERE IS 1 PROCESS RUNNING TAKING UP 99% OF CPU. ON THE APPLICATIONS TAP THERE ARE 2
IE7 APPLICATIONS LISTED BOTH ARE NOT RESPONDING. I STOP THE PRECESS TREE TO FREE UP THE COMPUTER. IVE TRIED SEVERAL SEARCHES TO FIND ANY RELATED ISSUES WITH NO LUCK. I HAVE DONE THE FOLLOWING TO TRY AND FIX THIS
ISSUE:
1) REINSTALLED IE7
2) INSTALLED IE8
3) UNINSTALLED IE8 AND REINSTALLED IE7
4) DISABLED ALL BHO’S IN ADD-ON MGR
5) RESET IE7 SETTINGS
6) CLEARED ALL IE CACHE, COOKIES,
TEMP FILES.
ANY IDEAS ON WHAT THE PROBLEM COULD BE AND RESOLUTION WOULD BE
APPRCIATED