USB harddrive strangeness

Hi,

I've been trying to use my Lacie USB external drive with both AOS4 and Windows Vista. I've tried it both pre-formatted, and formatted it as FAT32 from Windows Vista using fat32format.

I have the drive showing up in both OS4 and Windows. But if I copy a file to it on OS4, I can only see it from OS4, and vice versa, if I copy a file on Windows, I can only see it on Windows.

It seems they are reading and using different areas of the disk. Has anyone else noticed the same problem?

I really like to use the disk from OS4 and my PC to transfer files and so, and I know I can do the same thing by going Samba or burning CD:s, but I really like to use this drive. I don't care if its slow and USB1 on OS4, it should work.

The drive is an external Lacie, 500GB (reported as 463,GB by both Vista and OS4).

I have never really understood if the 4GB-orwhatnot-limit is still valid these days, but I keep thinking: come on, its 2009!

Has anyone succesfully used a 500GB harddrive over USB on OS4?