Howdy All, This is one of those posts that I guess could go to either list since it covers software (op system) and hardware (ram). I'll try here for starters. If I understand correctly... 1) Win 7 pro 32 bit has a compatibility mode that will run my xp programs (in particular, Cyberlink PowerDVD). 2) Win 7 pro 32 bit will recognize all 8 gigs of my installed ram. If both of these are true, when I run the PowerDVD program in compatibility mode, will it have access to all 8 gig of ram or at least as much of it that's not being used by other processes? Still having problems with Bluray playback and since I've been wanting to try win 7 I thought I would try this before I start saving up for a better video card (now using NVIDIA GeForce GT 520 1gig). Phillip Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://freepctech.com/pcbuild.shtml