[FLASH 8] gotoandplay random frame?

Im having some simple actionscript problems

I have a flash header here:

http://nikibrown.com/archworks/home.html

I have 3 frames and i want it to go to one of the 3 frames and stop when it loads.

This works fine in safar, but when i use FF for mac it will randomly go to frame 1 and frame 2 but not frame 3? it flashes frame 3 but then goes back to frame 2. God only knows what it does in IE (anyone care to tell me as i am on a mac and dont have ie…)

I have this in frame 1 on my actions layer:

gotoAndPlay (Math.round(1+Math.r andom()*2))
stop();

here is my .fla:

http://nikibrown.com/archworks/headnav.fla

thanks for all the help guys!
nebrow