model # PP11L

It is almost impossible to permanetly glue the plastic (usually ABS) used in the computer exterior casing.  What model is it?

 

You should be able to find the parts here:

 

http://www.parts-people.com/index.php?action=category&id=140&subid=95

 

Note that if the crack is around the hinge assembly, it's likely that is worn and should be replaced, or the new plastic part will simply crack in the same spot.

 

 

what family of notebooks is PP11L from?

It's a Latitude D610.

 

I used to have a D610, and I replaced the base with one I got from Ebay. It requires complete disassembly of the notebook, which isn't too terribly difficult to do.