X window paste takes 12 seconds

[Perry Smith]

Sometime back I had problems with X and paste when I updated my emacs.  At that 
point, I purchased a VNC server from Real VNC and started using it and that 
mostly solved my issues.

Now with emacs 24.5, I have paste issues again.

I go to an X window being displayed on the same server (I don’t know X 
terminology precisely) and highlight some text.  With my window manager 
(motif), that does a copy.

Now, I go to the emacs window (frame) and hit ^Y to paste what I just 
highlighted.  It does, but it takes up to 12 seconds and during the 12 seconds, 
emacs is frozen.

emacs is running on AIX 6.1 or AIX 7.1.

emacs -q still demonstrates the problem.  emacs 24.3 does not.  I don’t have a 
copy of emacs 24.4 to test with.

Does anyone have a clue how to fix or avoid this issue?

Thank you,
Perry