VPI Aries 2 platter is creating hum

Tried installing platter again. Hum still present. Played around with grounding and foil once again but didn't solve problem. Re-installed my old platter ( the noise floor is absolutely quiet) and will leave. I'm not willing to move components to solve this problem. The sound is good enough.

Hi cbrentc, not really sure what material(s) the original was made from. It looks like solid steel. I tried extra grounding on the platter,tonearm and motor with no success. Hum occurred when cartridge met record only. I have my class A amps on either side of the table about 6" apart. Even though the motor is not attached to the table can it induce hum?

Thanks for the responses so far. Have e-mailed VPI. Jeff_jones, will play with the aluminum foil. May I ask what differences you heard with the upgraded platter? For the short time the new platter was on, it appeared to produce clearer detail but wasn't as smooth and musical. Probably something that can be resolved by adjustments.