Now that this thread has diverted a bit from the original, I'll add some details...

First, I formatted my 4 GB SDHC card in sfdisk while doing the "start from MMC" routine and tried formatting to FAT32, by using a different flag for fs type - I used option b in place of 6 (see posts regarding starting from MMC) and got a FAT32 - File manager showed 3,7 GB at first. But I had to reformat it in Win because N800 only could use 2 GB of the partition - after reboot File manager told 2 GB...

Now I have loaded some 900+ MB of maps (1,45 GB used on disk) onto it and the system starts to get real slow. Would it be possible to use an ext2 fs for the map files? How would that be accomplished, other than repartitioning and such in sfdisk? Would it help, as in not making Canola crawl like it does now?

Also, how to tell MM that the maps should go to a folder that cannot be seen in the File manager? It is a nuisance that the OS only knows to show FAT disks in the manager, but I'm not going to try and install KDE to fix it... :-)