I am not very familiar with that 'My Computer' stuff (it's too microsoftish
). Try to do it the Linux-way. All drives may be automatically mounted through /etc/fstab (most probably the 'My Computer' window uses the same mechanism.
With 'cat /etc/mtab' you can check which filesystems are actually mounted. With 'fdisk -l' you can check which partitions are available for mounting. In /etc/fstab, create an entry for each of those partitions with
1. device (/dev/hdb2)
2. mountpoint (e.g. /myfiles)
3. filesystem (e.g. ext3/reiserfs/ntfs/fat32)
4. options (try 'defaults' first)
5. dump (set '0')
6. fsck (set '0' if you don't know more about it)
See 'man fstab' and 'man mount' for further details.
Sorry, with GNOME I cannot help you to get a clickable icon for your desktop
I am a KDE user.