I've just got a brand new labtop with quad i7 cpus and 24GB Ram, I installed IntelliJ 12.1.1. and everything was working great. But now a week later there is a a unacceptable lag of a few seconds before typing something and the cursor moving making using IntelliJ horrible. I've checked task manager and it only shows a few percentage of cpu being used, all othewr applications are working fine, I've allocated 2.5gb of ram to intelli j and it never uses more than 600mb.
What could possibly be causing this problem ?