sudo not working at all

[Jack Bowling]

I've spent this evening reading all the man pages and searching through 
google hits and mailing-list archives but still have not found a 
solution to the following problem:

I have done 2 Breezy installs on 2 separate boxes the past couple of 
nights. One works beautifully; the other has a broken sudo. The broken 
box spits out the time-honoured "Sorry, sudo must be setuid root" every 
time I try to use sudo. Permissions and file sizes for sudo as well as 
mount options for the /usr partition are identical for both machines. 
The working box gives me a root prompt in response to "sudo -i" as it 
should.

The only difference between the two systems is the bad one was an old 
Fedora box but I wiped all the system partitions as well as the home 
partition during the install so there shouldn't be any crud left around.

Baffled.

Jack Bowling
Prince George, BC
Canada