Hi all, First time post, long time lurk. I have an iMac G5 with iSight, running Leopard (upgraded from Tiger about a year ago) and have recently installed a new 1G RAM card. The reason I bought and installed the additional RAM was because I thought that the slowness of my Mac was due to the fact that the 512 RAM I had was not sufficient to run Leopard properly. (It was fine when I was running Tiger.) But it is still slow. Maybe even slower than previously. And over the last few days, it has been even slower still. I get beach-balls all the time for 30+sec's, and moving from one app to another takes ages!! Any advice/thoughts would be greatly appreciated. Thanks.