Hi Just purchased a new pc, and ex display model which was a good deal. Unfortunately, whenever I boot it up I'm experiencing freezes. It either hangs up on the initial windows vista screen (the blue/green one with the light blue circulating progress ring symbol), or shortly after the desktop appears. If I turn it off at the power supply, then choose "start windows normally" on the machine was shut down improperly screen then the machine continues to boot up normally with no further issues. Basically I have to turn it on, wait for it to freeze, turn it off then reboot to get it to work. Did have some problems with the mouse that was supplied, but then returned to an older mouse. It's drivers seem to be up to date though. When I tried to use the new mouse again today, however, the machine was far less stable, freezing a number of times during normal useage. It's Windows Vista Home Premium edition running on a Intel Core duo 2.20ghz with 2047mb RAM. Thanks in advance for any help anyone is able to supply.