I think I should warn people to use Project 2003.
Not only does it work completely different from all previous versions in the way it handles ressources, it also completely miscalculates when trying to adjust for overloaded ressources. It changes duration even if duration was set as fixed, it calculates values which do not follow the rule that duration * %unit = work, it even moved a complete project right up to the end of the calendar (2049!) when we had a overload between march 3 and march 15 in 2004 ...
It is only a minor point that some entries in the options dialogue have not even been translated ...
Wait for the next couple of service releases, or stick to your old version!