Yes, mine does too. The easiest way to check is to plug a radio in the same power line and listen to am AM channel while you operate your computer. In my case, statics go louder when I move my mouse. This noise is gone after I turned off the computer. I tried installing both a surge suppressor and a line conditioner, they didn't work.
Can Computers add noise to home electrical system
I just read something that some audiophiles feel home computers can add noise to your homes entire electrical system, despite having dedicated lines for Audio, and their may be some benefit from trying to isolate noise where your home computer is set up, with something along the lines of maybe quite lines, a noise hound , or an ultimate outlet. I am going to try this , but wonder if anyone ever experimented with this . Regards.