Yes - and I'm not offended as I've done that too. I found the answer here, which should save a lot of people a lot of wasted sata recabling time! :
http://support.microsoft.com/kb/937251
SOLVED
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Antec Solo case, OCZ Gamestream 600 PS, Asus Crosshair MB, Bios 1207, (4) 1gb Corsair PC6400 dual channel, AMD Athlon X2 5000+ BE, (2) BFG GeForce 7600GT oc in SLI, 1 WD750 Black, 1 WD500 Green, 1 WD400 Blue int. SATAs, 1 Seagate 500 eSata, 1 Samsung Sata DVD/CD, 1 Samsung 22" mon. Windows 7 RC1 Experience 6.0, limited by 3d graphics.