Trying to add additional pkgs and getting an interdependency error?

[Matt Considine <matt@xxxxxxxxxxxxx>]

Having originally installed FC3/Gnome from the CDs and selected the 
"Desktop" configuration, I would now like to add some of the apps from 
the "Workstation" configuration (specifically, the s/w development tools).

As root, I go to Applications | System Settings | Add/Remove 
Applications, let it do it's thing, and then select the relevant package 
choices.  (I'm not drilling down and trying to second-guess it's default 
selections.)

Now, when it is going through it's dependency checks, it tells me there 
are a number of things that need to be installed first.  But when I do 
an "rpm -q <packagename>" I get a message that it's installed.

Can anyone tell me a) what I'm doing wrong or b) assuming the answer is 
"nothing" tell me how to 1) get around the issue, 2) force it to install 
whatever it needs first, and/or 3) suggest a better way of getting the 
packages installed?

Thanks in advance for the patience.  And, yes, I did try searching the 
archives first ...

Matt