Did you go into systems settings and see the PDF printer? Can you see it at all and print a test page? Also check the web admin page:
http://localhost:631 and see if it works.
When you're in GCA and try to print, make sure you check the 'print to file' box. Your page will be in drive_c/Program Files/GURPS Character Assistant 4/. Normally it goes in your home/PDF/ folder.
So, you don't see the Skills bar in the wrong place in Quickview? Which version of wine are you using?
PM me if this doesn't work