I am having problems with my new Logitech X530 speakers, I cannot get the rear speakers to work properly, I just recently re-installed Windows, and there seems to be a "!?" next to the Multimedia Audio Controller on my device manager, how do I fix this? I have a sound card in my PCI slot but I think there is something more to it. Please help me figure this out, email me at error_deflection@yahoo.com if you have the answer.