Can't manage my iPod

[Matteo Riva <muradin@gmail.com>]

I used to be able to manage my iPod fine, but now it's almost
impossible. The device mounts and is browseable, although I get this
output from fdisk

  Disk /dev/sdb: 4095 MB, 4095737344 bytes
  241 heads, 62 sectors/track, 535 cylinders
  Units = cylinders of 14942 * 512 = 7650304 bytes
  Disk identifier: 0x20202020
  
     Device Boot      Start         End      Blocks   Id  System
  /dev/sdb1               1          11       80293+   0  Empty
  Partition 1 has different physical/logical beginnings (non-Linux?):
       phys=(0, 1, 1) logical=(0, 1, 2)
  Partition 1 has different physical/logical endings:
       phys=(9, 254, 63) logical=(10, 181, 8)
  Partition 1 does not end on cylinder boundary.
  /dev/sdb2              11         536     3919415+   b  W95 FAT32
  Partition 2 has different physical/logical beginnings (non-Linux?):
       phys=(10, 0, 7) logical=(10, 181, 15)
  Partition 2 has different physical/logical endings:
       phys=(497, 240, 62) logical=(535, 88, 61)
	
is this normal?

I tried 5 different softwares (Rhythmbox, Amarok 2.2.1, Songbird,
Banshee, GTKPod) and currently the only one that sees the iPod is
Rhythmbox (although its support is partial, as I can transfer files to
the device but not remove or modify them). The others don't even see it.

iPod is nano 4GB 1st gen, clean and reinitialized from iTunes on
windows.

What can I do to troubleshoot this?

Thanks.