You can only use local files???
 

Are you trying to use files taken from a mounted network drive? It can be that this isn't allowed for application icons, for instance. Think about what would happen if your network were suddenly down. What kind of icon do you expect to get then?

In any case, I suppose you could copy the icons (typically very small files) to some standard directory on your local hard disk and use those files instead of the files from the network.

Thanks for your fast answer, but no, I'm trying to load pictures from a folder of my harddisk... That's the weird thing!
I know that if I copy every file I need in my home everything works fine, but this can't be the only solution: I told tou about icons as an example, the chess engines are a second one and it is quite illogical to copy some binaries in my home folder...

:confused:

from the same HDD as your / or another one that is mounted?? maybe for same reasons mentioned above, can't you just copy the icons to something like ~/.custom_icons?

You can pull songs from a mounted secondary drive just fine - my entire /home is on a second disk.
Is this a mounted drive, or just a directory on the same partition? Also, can you `ls -l' the files?

Yes you can pull songs and files and all sorts from a mounted drive, but the icons are fairly important to a system i would imagine (a right pain if it cant find them) and so maybe it insists they reside locally.

If you mean system sounds, then i'll shutup :)

When you're accessing local files, you don't use full URLs normally.
URLs look something like this:
proto://computer.domain/path/to/what/you/want
where "proto" is the network protocol to use, like http for website, ftp for FTP sites or file for files on the computer's own disks.

In some cases, like remote copy (rcp), you need to use a syntax like:
computer:/path/to/what/you/want

In other cases, like ssh, you can use:
user@computer:/path/
or even
user:passwd@computer:/path/ (altough having cleartext passwords isn't recommended for security).

Seems to refer to a remote computer called "media". If there is such a computer, you can't use it's files (they're not "local files" as the error says), unless you mount it's disk on your computer (via a file sharing protocol like NFS, SMB (ie Samba) or CIFS (Windows)).
However, "/hda2" in the path seems to indicate it's a local disk.
If "media" is the name of the computer you're working on, I'd recommend leaving off the "media:" for simplicity.

Also, you don't need the /hda2 either. You can access the disk via it's mount points, wherever they are.
The files /etc/fstab and /etc/mtab will explain you what disks are mounted.