About to upgrade from Illustrator CS to CS3 on Tiger, and doing a lot of printing from Acrobat 7 (which before long I'll also upgrade, to Acrobat 9) on an EPSON Stylus Photo 2200, I'm unclear: how do I make sure to avoid having to print from the "gimp" driver(s). How do I keep the Page Setup box reading

Format for | Stylus Photo 2200 |

EPSON SP 2200 (1,1).

instead of, without warning at some point, having that lower reading switch to

EPSON [gimp whatever].

Previously somehow the gimp got in there uninvited and completely messed up my color printing which until then had been beautiful. After half a day of searching in vain how to revert it to the "(1,1)", finally it happened on its own although I couldn't figure out what I did causing it to switch back. Naturally I'd like to avoid going through this process again, if someone can point the way.

(I'm now starting to read David Pogue's Tiger book which might help me eventually find the answer but in the meantime, any help would be appreciated.)