Laptop causing some weird sound issues...

[Shane Harris]

Ouch...no need to go insulting a guys mixer! (Although you are probably right!)

[emde]

There has to be a solution......If I unplug my powercord from my laptop everything is great.I use pro-monster cables from the laptop to the Mbox.I wonder if it has to do with the Mbox being digital(usb)?cause if I take the same monster cables & connect them to a cd player,its all good.DIGI HELPPPPPPPPP

As I stated earlier, the issue is the mixer or other device is getting its ground from the laptop, which causes noise. When you unplug the laptop you "lift" the ground. Without a ground on the laptop, the mixer/mbox has no path to find one which is why the signal is clean.

[Karl Engel]

I had a similar issue & asked a friend who is an electrician by trade - he said lift the ground but always use it with a Residual Current Device. This is a hefty 4 outlet power box with a safety switch which will cut all power the split second it senses a power irregularity.