My daughter is buying a Lenovo T60 with Core2Duo 1.66 processor. I am going to add a memory upgrade (among other things), but am confused about the configuration of the RAM. All the documentation I have found so far says that the max RAM for this model is 3GB. That's not a problem, as I want to install two 1GB sticks of DDR2 667. My question is- the recommended config for three gigs is: 1x2048 DDR2 667, and 1x2048 DDR2 533. ???? Do any of you know if installing two 1024 DDR2 667's is going to work? Cause a problem? Can't find any literature directly related to what I want to do. Oh-- along the same lines- anyone familiar with Mushkin memory? Have never used it, nor do I know anyone that has. Reliable? Thanks to all-:knock: :suspiciou had the recommended RAM config wrong- it's correct now.