My Mem Usage for IE is 45,000 and for explorer it is 29,000
My CPU usage for both is 0% when I am idle.
That being said it is your CPU usage that is abnormal.
Do you run Adaware and Spybot? If not you should try that. This link will have downloads and instructions plus HijackThis details if you want to run a log by our Security Pros:
Please follow the instructions
HERE & then post your log in a new thread in the
Spyware, Adware, Viruses and HijackThis Logs section.
(Not in this section please).
Please specify what issues you appear to be experiencing along with your log