Quoth FrankG (frankg at nc.rr.com) at 1/28/03 15:44: > Then why does the system Profiler showing a 4th slot as "unused"/ Because as far as the memory controller is concerned, it's there, you just aren't using it. Sean Terrill a10t2 at mac.com http://a10t2.cjb.net •••••••••••••••••••••••••••••••• Try to look unimportant - they may be low on ammo.