How to increase font size in Nav 4.0 of Windows 7 without editing registry or any coding.

Dear all,

Please advise how do I increase font size in Nav 4.0 of Windows 7 without editing registry or any coding.

When I install Na in Win xp, the fonts look great, however, when I install it in Wins 7 the fonts were just to small and a pain in the eye. I have tried increasing the resolution but it will just make everything else looks silly big.

Appreciate any input

josh.