Can't save fixtures to a position

for some reason I can no longer save my fixtures to a specific position. I select the fixtures I want in the position they are in.
then I press [Record], then click on the Position Cell that I want, but it grey's out right away and I can't seem to same anything to it. see the screen below so you can see what i see :):

www.derksenweb.com/ftf/hog2screen1.jpg

www.derksenweb.com/ftf/hog2screen2.jpg

Any suggestions would be greatly appreciated!
Related