Guacamole hangs when running vim

[Edward Wingate]

I am using guacamole to RDP to my Win7 PC.  Whenever I run vim,
guacamole hangs and I have to reconnect.  It hangs whether I'm running
vim directly on the Win7 PC or when I am in an ssh session (via putty
on Win7) and run vim in the ssh session.  Has anyone else seen/know
how to fix this issue?  Thanks for any help.