I have a new mac mini which i hooked up to a new thunderbolt display and Mission control and expose runs slow. I have hot corners setup and there a significant lag each time i use it. My mac mini is the 2.5 i5 with AMD graphics. I even upgraded it to an OCZ ssd with 8gb of ram. Am i the only one with this problem? seems like the mac mini is having trouble powering the thunderbolt display