Hello and I apologize in advance. I'm sorry but I searched around and am still unsure. In an older thread here I saw in order to take advantage of 64bit programs you need to restart Snow Leopard in 64-bit by holding down 6 +4 while rebooting (or changing a preference somewhere). I remember doing this awhile back but it made my eSATA card not work (even though it's the very best one available for my 17"uMBP summer 09', the Sonnet Tempo Pro). Now that CS5 is out and everyone is excited about PS and AE being 64-bit, has something changed or do we still have to reboot as described above in order to take advantage of this ability. Unless I'm completely off here I imagine many of those excited about 64-bit didn't realize you had to do that. Can someone please explain this to me? Also, do you still have to hold 6 + 4 at bootup?