Arduino Uno can't disable serial reset

I seem to have solved it for the moment by adding a capacitor between the reset pin and the ground. I figured that with the resistor keeping the reset line up, the added capacitor maybe add enough oomph to keep the line up.

It did. I used 220 uF as it was the only one I had laying around, but I expect that a much smaller capacitor works as well.

Thanks for the responses.