I had the same problem, ended up just uninstalling the MS update. Does anybody know what exactly it was that was causing the problem? I do not necessarily think that MS should feel required to test out their stuff with various popular pieces of software such as zone alarm, but I do think they should be careful enough with their updates to not change something so drastically as to cause results such as this. At the very least a warning in the update description informing users that the changes the update contains may cause this sort of an issue. Then again maybe I'm just asking too much from a company that's charging so much for their operating system.