Memory Card Error (Really Strange)

[zeromax]

My computer for some strange reason, cannot read SD cards that were used by the PDA if my Maxtor External Mini Touch II hard drive is attached with encryption on. Should the encryption be off, or the drive is detached or the card is not from the PDA then it can be read.

Anyone wanna guess what the problem is?

Wish I had an answer for you but perhaps this strange situation is what I am encountering when for some strange reason my 2 gb sd card once worked in my axim x3, then was used in my iPAQ hx2755 (with encryption on) and subsequently could not be read by my axim x3 once again.