DB Updated, but no Updates

[Kenneth Jacker <khj@be.cs.appstate.edu>]

I'm using 'aptitude' on 'sarge'.

Sometime when I run the "update" command ('u'), I see what appears to
be new info (last time about 500kB) for the DB being transfered.  Yet,
when the display is redrawn, neither new nor updated packages are listed.

What is really going on here?  My theory is that there *are* updates,
but only to programs that I don't have installed ...

Thanks for any clarification!

-- 
Prof Kenneth H Jacker       khj@cs.appstate.edu
Computer Science Dept       www.cs.appstate.edu/~khj
Appalachian State Univ
Boone, NC  28608  USA