Yesterday I put in a new stick of memory in my 17" iMac G5 and all seemed nice. The system profiler showed the memory properly and at least nanosaur 2 (well, I prefer this over solitaire and tetris) ran much smoother than it did before. BUT... when I run tests using Techtool (4.0.1), Techtool will tell me the freshly occupied memoryslot is empty (see screenshot - I hope it's clear enough; some text is in Dutch). Could this be a bad thing? Or is it just strange behaviour of Techtool? The memorystick I put in is a 512 Mb, 400 MHz PC3200 DDR stick. I don't know the brand (I bought it in a local computer store that sells components from bulk) but it matches all the specs that Apple gives on their website. Does anyone know if I should start to worry?