Our Server Desktop is just locking up more and more often. It doesn't seem to effect the users. Exchange is still running all the apps etc but if I have to login to the server, either at the desktop or RDP its locked up. The mouse will move but thats about it. Not even the task manager will come up I have to hard boot it to be able to get into it to do anything. So if I have to login to change anyones password or etc.. There are no errors in the event log so I don't know what is causing it. When its locked it doesn't seem to effect the apps the users are using I just can't login and do anything unless I reboot it. Is there any way to fix this?