Hi, A few months ago I upgraded my EFI Firmware on my Uni-MBP 13" to 1.7 and was getting constant Freeze and stalls. I then found out that it was because of the EFI firmware, so I went back to 1.6 and now its working fine. I was just wondering since i couldn't find the answer on the forum maybe you guys can help me. Have apple fix this problem with a new upgrade like 1.8 of some sort? And if I was to Upgrade to SL would they have this problem as well? Thanks.