Currently Being ModeratedSep 13, 2011 4:27 PM (in response to pglick)
I found this in the community. Same problem Mouse pointer disappears on second monitor.
Currently Being ModeratedNov 1, 2011 7:12 AM (in response to pglick)
I am getting the same problem. It is terribly irritating. It disappears whether directed from my mouse, or directed from my cursor pad.
iMac 27" with thunderbolt extra monitor and Lion 10.7.2
Currently Being ModeratedNov 9, 2011 3:27 AM (in response to pglick)
Same issue with Mac Mini 2011 with Lion 10.7.2 and HDMI monitor. Not resolved with Thunderboldt update
Currently Being ModeratedNov 9, 2011 8:13 AM (in response to pglick)
I have recently avoided a recurrence of the problem by pushing the "Computer sleep" time to 1:15 and the "Display sleep" to 1 hour. The monitor has gone to sleep, but its possible the computer has not. This is not very scientific and needs confirmation by someone else.