ssh opens windows on host computer

Hi all,

Please can you help with a frustrating problem I have.

When I ssh -X or -Y from my macBookPro [OSX 10.5.8] into another Mac [again, OSX 10.5.8] and try to open a file,

e.g. host_mac%> Aquamacs text.txt

Aquamacs opens a window on the host machine, not on my laptop!

How do I overcome this?

I've got root privileges on both mac's.

Thanks,

Ben.