I'm using a Windows 2000 system and IE 5.5. Your reply spurred me to attempt submitting the node on another system; it turns out I could successfully submit it from a Sun workstation (Solaris 2.6 / Netscape 4.75). I'm still not sure what the problem is, since I've submitted nodes from this Win2k machine in the past with no problem.

Anyway, thanks again.

Josh