Bonjour isn't letting me transfer files
I'm currently at work, and I'm just trying to send my coworker a file through iChat, with a Bonjour account, and it keeps failing. I am somehow still able to do screen sharing with her AND she is able to send files to my boss, who is in another room. UPnP is enabled, no one has any firewalls up. I just can't seem to figure this out. It seems that they are the only two computers who can send each other files. If someone could please help, that would be so great!
Thanks!
J Aaron
iMac, Mac OS X (10.7.3)