Spot the fault...
Run through this list of debugging challenges and choose 2 or 3 from each section: Lexical Errors; Syntactic Errors; Execution Errors; Logic Errors. Write up a short description of the problem (how it presented itself), what you found and how you fixed it. Screenshots would be handy.
Original image: 'Fixed' http://www.flickr.com/photos/27384730@N00/109566859
by: Mike Fernwood