Corrupt data on SD card in Axim X3i

[rotero]

Hello,

I have a Dell Axim X3i and 2 SD cards: Sandisk 1GB and Sandisk 256MB (UltraII).
Since a few days I get corrupt data on my SD cards after a write action on the card. In a directory there appears several subdirectories containing strange characters.
I cannot delete these directories. Only a format will remove them, but after a format the directories appear again after a new write action.
Does somebody have the same experience?

Who has a solution? What to do?

Hope someone can help.

Regards,
Rob.