menu fails on qt-front 1.3.2

[larry]

I'm experiencing consistent failures and core dumps using the keyboard to
access sub-menu items in LyX 1.3.2 using the qt front-end.  

For example: 

        alt-I (Insert) 

brings up the first menu, but then

        alt-S (Special Character)

fails to bring up the submenu.  Nothing happens.  In fact, if I then hit a
"right arrow", LyX core dumps.  

Is this a known problem?

I'm using Redhat 9, qt-3.1.2.