I just bought my 1st mac. a MPB fully loaded. I installed MS office and VM Fusion with not problems at all. Got my 2 windows apps (VISO and PROJECT) running under fusion/windows with no problem. OS X 10.5.1 is cool Now the problem: set up spaces to auto launch 4 apps in their own space: Fusion, Word and Excel an Entorage. After a while my mouse doesn't work and the system seems to hang. Had to force a reboot of the OS twice. I then turned off spaces and the problem when away. Any ideas why? No the Question: Unrelated to the above issue, are there diagnostics I should be running on a regular basis on the MAC to keep t as health as possible. Thanks!