How to zoom in...

Do you have trouble seeing the screen when reading very small text?  It's easy to zoom up on the text in mac OSX tiger and leopard. All you need to do is go into the system preferences then click on "Universal access".  Turn zoom on.  Now to can zoom in and out!  To zoom in you press option, command (apple key) and the plus button (next to the delete key).  To zoom out press the same thing but instead of hitting the plus key hit the minus key which is next to the plus key.