Earlier this year I completed my first build - researched my topic, read a book, lurked on a couple of forums, bought a few issues of Custom PC, then bought all my kit online and sat down one Sunday afternoon to build - was really quite pleasantly surpirsed when everything went according to plan, powered up and loaded Vista without a single problem and had a working PC by late evening. The original headline spec was - Asus P5B deluxe wifi; E6600 Core 2 Duo; 2GB RAM; Western Digital 500GB HDD; X1950XT Graphics card; Enermax 1kw Galaxy all brought together in a Coolermaster 830 Stacker. I overspecified the power with the intention that at some point in the future I would be beefing up the system with maybe a pair of top of the line graphics cards (unfortunately Crossfire if I retained the same M/B) maybe a quad core CPU and further HDD's and who knows what else.... I dabbled with a little overclocking which also worked fine and then called it quits. I have just decided to spend a little more tweaking things upwards further so bought a G0 Stepping Q6600 Core 4 Quad and a couple of Samsung Spinpoint 501's with the intention of setting them up in a RAID 0 array. My intention was to leave the WD HDD in place as the boot drive and storage for things like photos and music and have the two Spinpoints as a separate RAID 0 array where I would load games and other programs I wanted quicker load times from. It unfortunately doesn't look like that's going to work - I've successfully phyically connected up (S-ATA connections) and mounted the two new HDD's - BIOS recognises them, but they don't show up in the "Computer" spec summary in Vista and whenever I try to configure the new array in BIOS Windows won't then load. What am I doing wrong? My internet searching has revealed mixed help - all I can possibyl discern is I might have to go for a re-install of Vista but I understand Microsoft might be difficult with me about that as I bought an OEM version of Vista. Thoughts, help, a kind person out there to give me a step by step to achieving my end objective?