Signals and slots not showing in debugger

According to the Qt Creator Tips and Tricks, I should be able to see the signals and slots in the Locals and Watchers window while debugging in Qt. This is not working. They are not showing up when I debug. I have the option checked to "use debugging helper" and the other data structures - QStrings, etc. are showing up just fine. Just the signals and slots are not being shown.

I am using the following:

Qt Creator 2.0.94
Qt 4.7.0 (64 bit)
Fedora Core 14 (64 bit)

gdb reports:

GNU gdb (GDB) Fedora (7.2-41.fc14)

Any suggestions on where to look to get the signals and slots to show in the Locals and Watchers window?