I just bought a QS for my mom, and I have a question about memory. How do I tell if the memory sticks are good or bad, for sure? The QS came with three 512MB sticks. They show up in ASP. One of the disks that came with the QS was an Apple Hardware Test disk. I was curious what was on it, so I ran the test program. It says two of the sticks have errors. I ran the test numerous times with one stick, in different slots, pairs in different slots, in different orders, etc. Same results. I then found and downloaded MemTest, an OSX program for testing ram and it says the same thing. I called the guy and he says the QS never gave him any problem. He's willing to buy me ram if that will make me happy. I don't want him to waste his money if these tests don't really mean anything. A trusted Apple tech friend of hos said that the tests are not reliable. So, outside of using the computer for months, is there any sure fire way to know ifthey are good or not? Thanks STeve