Hey everyone, I just recently moved into a commercial space for my design studio, and I took my 2008 Mac Pro 3,1 (8-core) to the studio. I'm having a few interesting problems with the USB ports on my Mac Pro when it's at the studio. It seems like I can only have one device plugged into the computer. If I have my USB Apple keyboard plugged in, none of the remaining ports will work (my iPhone won't even detect a charge). If I plug my Wacom drawing tablet into the keyboard hub, the keyboard stops working, but the tablet works. If I unplug the keyboard and plug a different device in, that device will work, but another additional devices won't. And the cycle continues. Last night I took the computer back to my apartment, and all the USB drives work properly, but I ran into the same issue when I took my computer back to the studio this morning. I've tried a SMC reset, PRAM reset, and reinstalled the OS. The outlets are putting out 120-123 volts. Does anyone have any other ideas? Thanks for you help!