[Plugin: GD Star Rating] Plugin causes “fatal error” when you’ll activate it

That’s 100% impossible and fatal error might not be even plugin related. If you have only 32MB (or less) memory assigned to PHP than fatal error is caused by that, and you need to increase it. This is discussed countless time already, and it happens with all WordPress 2.8 versions when you have more than 5-6 plugins active.

If memory is not the problem, that please post the content of the error, since no one else reports any problems. I use plugins on many, many blogs and everything works.