[PyMOL] can't type into Tcl/Tk dialogs using RHEL5 Linux Client

[Sabuj Pattanayek]

Hi,

We have a system running
cat /etc/redhat-release
Red Hat Enterprise Linux Client release 5 (Tikanga)

When we launch Open-Source PyMOL 0.99rc6, we can't type anything into 
the Tcl/Tk dialogs (e.g. main dialog, file open, apbs tools, etc). 
Typing into the viewer dialog works. Has anyone noticed this problem or 
know about a fix?

Thanks,
Sabuj Pattanayek