Why does plugging my USB 3 thumb drive into my USB 3 adapter card cause my wifi signal strenth to go down? My hardware setup: Western Digital 320 GB SATA, 16MB Buffer, 7200 rpm Gigabyte ATI 4850 512MB PCI-E 2.0 X 16 GDDR3 (GV-R485-512H-B?) Kingston Hyper X KHX9200D2K2/2G: 2X1 GB PC2-9200, 1150MHz, DDR2 Antec P182 case Gigabyte GA-EX38-DS4 Q6600 Core 2 Quad 2.4 MHz Corsair HX620W Modular Power Supply