Grouding

i have a portable DVD player, that I connect to my pc via usb, and some cheap speakers that connect via usb and jack. I can hear when the DVD player spins up the disc, and just sounds that normally only come from the DVD player, but now I can hear those sounds through my speakers even if I mute...

Hello all, My issue: Monitor screen goes black (no signal detected) when touching peripheral device (microphone) Situation example: I leave my desk, go get some coffee, return to desk,. Moment I touch my headset/microphone, screen goes dead Observations : Upon black screen, the audible...