In Photoshop: Edit menu > Preferences > Interface > UI Font Size > Medium or Large
The problem is that CS4 came out when monitors were 1280 x 800 and today, most modern screens are much higher than that, so the print will be small.
I'm not much of a Windows expert, so hopefully someone who is will advise.
(If anyone's answer solves the problem, mark the answer as correct. If it doesn't ask a followup.)