any way to get it back to 100% default? i've tried reverting yum.conf to no avail.
[root@localhost m0nk3y]# yum install flashplayer
Setting up Install Process
Setting up repositories
core [1/5]
core 100% |=========================| 1.1 kB 00:00
nr-production [2/5]
Cannot find a valid baseurl for repo: nr-production
Error: Cannot find a valid baseurl for repo: nr-production
[root@localhost m0nk3y]#
help?

im not sure if flashplayer is a good example, but all legitimate programs give me the same message.
-edit- i'm using fc5 i386 (32bit)
-nick