Hi. Just got my new macbook pro 2.33/antiglare. It always connected to external display via thunderbolt port. Randomly, in safari, finder of any another programm when i press mouse or old mouse button system freezes: cursor turn into spinning ball (but i can move it) for 20-30 seconds and then all work propertly. That issue happens in with my ssd drive, that i've take from my old macbook . System version 10.6.8. After that i've tried to install Mac OS Lion - same issue. What shall i do? Firmware install? Return to Apple?