I have a model with a bone for each eye with an aim at constrain and the target is a null ,but Im geting the cross-eyed look .If I was to put a null for each eye and another null what would I need the constraint's to be then and would that stop the cross eyed look ,such a lot of questions , appreciate your help guys and gals
edit , its working fine now ,must have been just in that action file ,strange strange strange

Edit your pose with the aim at constraint. Set both constraints to 0%, hit the compensate button and set one of the constraints to 100%, hit the compensate button again and set the other constraint back to 100%.

You could also place another bone between the 2 eye bones and have the eye bones orient like the bone inbetween them. You can just use that center bone or have the center bone aim at the null.

Thank's Mark that sounds a nice way to go ,Ill give that a go cheers