Attached Link: www.phillheckinger.20m.com

hi people, i am having trouble exporting objects from a scene so i can open them in other programs. this is what is happening. i open a new scene and create a rock. i dont do anything to it cept maybe move it. i save then i goto file and export obj. but it is in grey so it wont let me. why??? is there anouther way, am i doing it wrong, is it somthing else, ie my program?...please help i know somone knows what is going on.