smart gui's not displaying, updates not working, more

[Claude Jones]

Smart has become dysfunctional on my system (Fedora 13) due to several 
symptoms:

The program opens normally and the "Updating cache" window appears normally 
for a moment

When I click on the circular arrow icon to refresh the database, the trouble 
starts; what I have gotten for years is a window that shows the progress of 
the repo updating process with progress bars - what I get now is nothing for a 
very long time (I just timed it, it took 54 seconds); finally, the expected 
window popped up with a second error message stating that "Failed acquiring 
release file for ...." Clicking the "OK" button on that error message results 
in a very long delay - finally, the process ends. 

Clicking the "Upgrade all packages" icon yields up the expected "Change 
Summary" window; clicking "OK" on that produces the "Apply marked changes 
now?" dialog; clicking "Yes" produces no result - nothing. The main window 
sits there, but no other activity - normally, I've gotten another window to 
open that shows the progress of the downloading of the requested packages, but 
that never appears...


What I've tried: 
I've been through the channel lists several times and verified that the 
pointers are working sites on the net for the repositories

I've re-installed the release rpms for both Fedora and rpmfusion, the only two 
repositories I have configured at the moment on this machine

I've removed Smart and re-installed

Any suggestions on how I might proceed?
-- 
Claude Jones
Brunswick, MD, USA