My 512 MB M-Systems flash disk won't work with my desktop A1200 when my Blizzard 1260 is installed, even if the 1260 has been disabled. The power requirements on the drive itself are extremely low (lower than the 2.5" IDE drive I normally have installed), so I don't believe it's a power issue. The drive works perfectly well in an unexpanded A1200. D'oh!
Trev