I just got my new system, a new gaming desktop, plugged almost everything in, but when it came to inserting the plug for my speakers, it doesn't go in all the way despite pushing rather hard. The speakers hum because they're not grounded. I don't really want to push in real hard because the audio is coming from the mother board I believe and I'm afraid of damaging that. Why would this be happening? I've never had a problem like this before. I've tried contacting the manufacturer, and I'm on hold for a few minutes before their system hangs up on me and it's done that several times!