Follow-up to my last post:

Tried an SDHC-compatible card reader in Windows and my 8GB Transcend isn't recognized. Clicking on the SDHC card reader drive letter in Windows file explorer causes that explorer window to lock up until the card is pulled out of the reader. The "Disk Management" Windows management application does the same thing when I bring it up - locks up until I pull the card out of the reader. Windows "Device Manager" does not show any flash device, and no "New hardware found" popup message is displayed when the card is inserted.

So it looks like this 8GB Transcend is dead. Now I've got to figure out if I want to exchange it or get a refund.

Does anyone else have any new information about this problem? It seems like many of the problems (including mine) occurred when file transfers were occurring over a USB connection to a host PC. If this is the case, I can live without using the USB - SFTP/FTP/Samba/NFS will do for getting files to/from the N800 from a host PC.

Also, I have been using two old non-SDHC cards in my N800 rather heavily lately. The internal one is 256MB, external is 512MB. I have had no problems with either card thus far. I have not hooked up the USB connection with these cards, and don't plan to until this problem gets resolved (or at least explained).