There are no stupid questions, only stupid answers.
As far as I know there are two solutions to your problem:
1) Change the font size to something bigger; you can experiment with different sizes until you find something big enough. To do this, you have to edit a file called either .adom.cfg or adom.cfg (depending on the version you are playing). Follow the instructions within that file to change the font size (you can also change the font type). More information at
http://www.ancardia.com/faq.html.
2) Play the DOS version within a DOS emulator like DOSBox. It has a fullscreen option.