Removing the ground on PC?

My Wadia 302 has a tendency to cause hum in some set ups - I just cut the ground prong off a PC to cure it. Don't need the add on 'cheater plug' and you get a much more secure connection.

FWIW, it came with a standard 3 prong plug and the manual sez nothing about what to do if you hear a hum.

Musicnoise/Carl109, A question..........

I have a source connected to a power conditioner with PC and an IC to the pre-amp. I have the Pre-amp PC going to the same power conditioner and its IC to an amp. I have the Amps connected to a difference power source. The Power conditioner, the pre-amp, and the amps all have their grounds intact.

Are you saying that having the ground prong from the source PC defeated that I have created a potential source for electrocution?

If yes, please explain. I don't understand. I do understand why the power conditioner should have a ground, and the amps have a ground, so just address the issue of the source ground defeat.

Thanks......