Randomly Alternate LED pins

Using Arduino LEDs and Multiplexing
12

PaulRB:

ledPin1 = myPins[random(0,1)];

Mistake there. When you wanted random to return 10 or 11, did you put "random(10,11)" ?

Am I supposed to use the array indices of 0 and 1 or the actual pin numbers 10 and 11?