I have been building my drum bases in reason, and I created a combinator with 10 Kongs stuffed inside of it, and than created verse, intros and chorus parts, but all of a sudden I can't get Reason to go past the chorus sections to put my fills  into and endings.  None of the Song pointer or the right end pointer or fast forward will let me go past the end of the chorus.  Any idea's what might be causing this?

Have you tried fb? There is this fb group called Properllorhead Reason Users.