SOLVED: How can I reduce ADC jitter

[Demon]

ADCshift = NewADC0 >> 2

I shifted the results 2 bits, expecting to lose any jitter from 0 - 3, but I still get jitter.

I bet it's when a number jumps an upper bit, like 00100011 to 01000100.

I'm using 10-bit ADC, so chopping 2 bits already bring me down to 256 increments.

Bringing it down more won't solve when it's a higher jump, like 00111111 to 01000000


EDIT: Divide by 4 doesn't help either, I still get jitter, even on the voltage-divider.