launching as root seems ok.
Created attachment 8348 [details] gdb stackdump
Are all of the ifcfg-XXX files in /etc/sysconfig/network-scripts world-readable?
This defect is considered MUST-FIX for Florence Release-Candidate #1
Blew up on me too. Used the desktop icon to configure my dialup account. Ran up rp3 and BANG. This is very nasty. Possibly the most severe bug I've found in beta3.
It's caused by (a) not enough error checking in rp3 (b) /etc/sysconfig/network-scripts/ifcfg-eth0 not being world readable Here's a fix for (a).
Created attachment 9220 [details] rp3-null.patch
Should work again in rp3-1.1.7, which hit the tree today.