Could you perhaps send me a PDF of the sheet, so I can see exactly how it's turning out?
If you're feeling adventurous, also maybe ZIP up the character in question, and your sheetoptions.prefs file from
%AppData%\Steve Jackson Games\GURPS Character Assistant 5 ?
I don't know that I'll be able to reproduce the result, since having different printers will result in differing sizes which results in differing outputs, but maybe I can see something like what you're seeing, and figure out what's getting bumped and how, to address this.
Please send whatever you can to
gca5@misersoft.com and I'll try to figure it out.
In the meantime, playing around with chosen options, font sizes, margins, etc. may result in better output.