it just isn't running
Make sure the 33K is connected to output, not 9V.
I made up that exact circuit, and it worked. Both LEDs flashed. Only one flashed when powered with 5V.Quoteit just isn't runningWhat do you mean? No LEDs flash? Just one? One or both on all the time?
I should point out that I don't have a bi-color led like the thing says, so I'm just using two leds set up like the diagram.