The 32bit option ended up being a good compromise. The pc is back to its snappy self (I did a disk format and a clean install to get rid of the overhead that had accumulated over 2 years) and I have full services of the MusicPad.
It's the way to go at least until we discover a replacement for the MusicPad.
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Graham Milligan
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Graham, Korg Pa1000, Korg G1 Air, Countryman E6, Roland BA330, 2 x Roland CM-30, , Mackie SRM150