There is a thread on how to wipe dynamic data but I can't remember just now. If you can't find it by this evening I know I have it saved somewhere on my home machine so I'll let you know.
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Rory
MkIIa, blue lit buttons, memory upgrade, 1Tb in Subaru Forester STi
MkII, 240Gb in Mark Lord dock
MkII, 80Gb SSD in dock