hi, long time reader, but first time poster.... few day ago i sow on my MBP 13"\2.53GHz\OSX 10.6.3 after i installed iFreeMem that i got 3.75GB ram ???? i opened Active Monitor and all so there under the "cake" it say 3.75GB,so i looked at "about this mac" it say i got 4GB ram ???? but in the left side in active monitor, where it say free,wired,active... ,if i calculate the free+used its equal to 4GB? in my other\older macs i never had this problem before, so i was looking at friends mac's (MB\MBP) with OSX 10.5\10.6 and it sow the correct ram (what ever they got) in Active Monitor \ iFreeMem...? so way i can't see the 4GB that i got every where? is it coz of the GPU that share 256MB with the main ram ? and if so way i didn't see the same on other mac's? tnx.