Photosensitive Resistance's controlling the angle of my servo

What's the resistance of your LDRs? If it's over 10k ohms it may be that the ADC is not able to measure the voltage correctly. I read on another thread that it's a good idea with higher resistance potentiometers to read the same measurement twice in succession and just use the second reading, but I have not tried this. And the output from an LDR can vary very quickly so the idea may not be relevant to them.

Another possibility may be to treat the LDRs as "digital" devices and just take an on/off signal from them depending on whether the voltage is above or below some number - in other words don't bother with fine resolution.

...R