So I have 2 of these minis, both connected via MDP to HDMI and using analog audio out for stereo. Both minis, running 10.6.6/10.6.7, both 2.53 Core 2 Duos, come up from sleep without the cursor showing. It's there, menus pull down and highlight as I move invisible cursor, but lose it on the desktop and it's impossible to find again. Restart always fixes it. Both Have an external Keyboard/Mouse as I use them for media servers (one Bluetooth, one hard wired). So, any ideas?