Dilbert works with computers
This will give you a new cartoon every day
This will give you what inspired me to post on 13th July 2011
http://dilbert.com/strips/2011-07-13/
You can search the archive for cartoons that correspond to your choice
Dilbert having meltdown at user request
http://dilbert.com/strips/comic/2010-06-27/
Dilbert controlling boss
http://dilbert.com/strips/comic/2010-04-19/
Enjoy