I just recently bought an iMac and overall I am very pleased with its performance. I am running OS X 10.3.2

I have noticed that the fonts used in the tabs in Excel, Adobe, Explorer and other applications are too small and not very readable. The same goes for the fonts used in indicators used in Excel as "num lock", "shift lock", etc.

Is there anyway I can change this fonts, specially the ones used in the tabs?

I am posting here because I believe is a system related problem. If not, I apologise.

TIA, regards;