I've installed Windows 7 RC as an upgrade from Vista Ultimate. With Vista Ultimate, my laptop (Lenovo T61) ran perfectly. Now, however, I see my CPU utilization (I have the Gadget on my Desktop which shows the utilization) sits on about 50-60% permanantly. My battery life is now less than an hour whereas I was getting at least 3 hours previously under Vista. I've tried uninstalling my Antivirus (NOD32) and some of the Lenovo SW I wasn't using, but to no avail. As I said, I have a Lenovo T61 Laptop with a Core 2 Duo T7300 2.00Ghz Processor & 2Gig memory. Any help would be appreciated.