[TriLUG] Computer Getting Slow

[Henry S. Huntsberry]

I am relatively new to Linux and love it thus far.  I use it on two computers 
at work and one at home for the family.  At work I use an IBM T23 and it works 
great.  I keep it up2date and all systems seem to run fine.  However, my PC at 
home, as of about Wednesday of las week, seems to be very slow as it srarts 
and an opens any applications.  I noticed that the CD burner seems to be 
acting funny as well.  My computer at home is used by my family and the 
default is a gnome session.  I used to be able to simply put a blank CD into 
the CD and it would pop up with a //Burn screen that made it simple to burn a 
CD.  Now it is very slow to open and when I try to burn a CD it just hangs.

Then Last night I ran up2date at home and it hung up and gave an error message 
about one of the packages not having the right gpg cert.

Can anyone give me some ideas of what might be going on with my home computer?

Thanks,

Scot Huntsberry