[CentOS] yum recovery?

Note:  As a digest subscriber the favour of a direct reply is 
requested in addition to the list.

I had a network connection interrupted while running yum update on 
a remote server.  The last line displayed showed 189/3?? updated.  
Subsequently I reconnected and now yum reports that there is 
nothing to do:

Setting up Upgrade Process
Setting up repositories
update                    100% |=========================|  951 B   
 00:00
base                      100% |=========================| 1.1 kB   
 00:00
addons                    100% |=========================|  951 B   
 00:00
extras                    100% |=========================| 1.1 kB   
 00:00
Reading repository metadata in from local files
No Packages marked for Update/Obsoletion

Is there any simple way to check what the actual state of that 
machine is or to force yum to reapply all outstanding updates 
regardless of whether they are already installed or not?

Regards,
Jim


--   
     *** e-mail is not a secure channel ***
mailto:byrnejb.<token>@harte-lyne.ca
James B. Byrne                Harte & Lyne Limited
vox: +1 905 561 1241          9 Brockley Drive
fax: +1 905 561 0757          Hamilton, Ontario
<token> = hal                 Canada L8E 3C3