Hi, I have the Late 2008 UMBP with 2GB RAM, 2.4Ghz, etc. For some reason, iFreeMem and Activity monitor only see 1.75 GB of ram and not the full 2.00 GB??? And I notice it too, when the computer starts to lag... Anything I can do? I've been thinking about upgrading to either 4GB or 8GB, but low on cash right now, so not going to for at least the summer.... thanks much!