I remember hearing when people were having problems with their Smartstrips; couldn't get the sensitivity right. I think the problem is people's power in combination with the PC hooked up. A slight drop and it wants to draw. Also, if your PC bios is set to power on after power resume, that'll do it every time. But I'm betting the power is the first part of it, because this would happen to my vert rig, where the PC bios is set for on/resume (got to change that, no reason for it there). Might happen with some laptops, too, that like to go into stand-by on resume.