Ports Installed Are Newer Than Tree?

[Drew Tomlinson]

It seems that the ports I have installed on my system are newer than the
ones in the ports tree.  If I run portversion, I get output that looks
like this:

farmer# portversion -v -L=
XFree86-Server-4.3.0_6      >  succeeds port (port has 4.3.0_5)
cdrtools-2.0_1              >  succeeds port (port has 2.0)
gconf-1.0.9_3               >  succeeds port (port has 1.0.9_2)
gdm2-2.4.1.4                >  succeeds port (port has 2.4.1.3_1)
gnomegames2-2.2.1_1         >  succeeds port (port has 2.2.1)

And the list goes on.  I've updated my ports tree using cvsup and it
finishes successfully.  I've also run portsdb -uU to update the indexes
however the problem persists.

I'm stumped and don't know what else to check.  Any ideas?  I'm running
4.8.

Thanks,

Drew