It is really very different for each person. Some people here have a lot of success with low-carbing; others work best with a more equal balance between carbs, fat, and protein. There aren't any rules or charts to tell you (unless you are following a certain diet plan; in that case, check their website), because it is so variable.
If the percentages of each that you have now are not working for you, change it up and see what happens.
How many calories are you burning a day?
"If you drop an egg, you don't say, 'Oh, shoot' and drop the other 11, do you?"
-Source unknown, but obviously brilliant
Reached goal 4/16/2010...but kind of afraid to look these days