I remember seeing something posted about one of the defined races having attributes that spent more then 10 points causing it to show negative in the ability window. Also in one of the beta versions of 1.1 they changed some of the costs for certain attributes. If you are using an older race config this could also cause this. Beyond that I'm pretty sure you can select more then 10 points of attributes it just won't let you continue or save if you do.
