Printing in Ubuntu 8.04

[Rob]

Greetings all,

Can anyone shed any light on why printing seems to be such rocket 
science with Linux?  I have been using Linux for a good number of years, 
beginning with much earlier versions of Red Hat, then Mandrake and 
finally now, Ubuntu 8.04.  I have always had problems with printing and 
once again with Ubuntu, I am not able to print.  I have 5 documents in 
queue to print but they are not printing.  Not sure what else I can add 
to a description of this problem other than in the Document Print Status 
box, my printer is correctly identified as an HP Deskjet 6940...

Any clues would be welcome.

Many thanks,
Rob