>> Different sizes?
>> How old is the IPaQ? Have you looked for a firmware update?
>
>
>same sizes (1g), 1 yr, and fully updated.
>
>I fixed the problem last night apparently, by reformatting
>them in the laptop multiple times. The first reformat and
>the second did not solve it, but after three, all the cards
>are working in all platforms.

I suspect you may find that the cause of the problem is some pernickity
funny in how the cards were originally formatted. If you want to dig deeper
into this, read the document that Microsoft has on dealing with FAT
formatted media - it goes into right and wrong ways to format the media, and
why the wrong ways are wrong, but points out that some manufacturers
(specifically of floppies) did it that way because they did not understand
the format.

Look for fatgen103.pdf on the Microsoft website. The 103 part of the
filename is the revision number, so if you cannot find it, try being more
general in the file name.

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