Nothing above V8 Works - McAfee Stops

Whenever I try to update or do a full reinstall beyond version #8, McAfee Host Intrusion Prevention (at work) stops the application from running. The message type is "Attack Type: Suspicious Function Invocation." I do not get this error with anything at or below v8.0

On my home computer, Firefox 11 works fine from the USB.

Thoughts on something that I could fix? (other than stopping McAfee)

Thanks
Brock