Wireless kb/trackball slowdown when using USB3 flash
I tried to look all around the forums but could not find the answer for my issue...
I have a late 2012 Mac mini (current OSX ML 10.8.4) with a Logitech wireless K270 keyboard & Logitech wireless M570 trackball - both synced to a Logitech unifying receiver. I've been using both the keyboard & trackball for almost a year without a problem until today - I purchased a 32GB USB3.0 flash drive and plugged it into one of the open USB ports on the back of the mini.
immediately I could not use the trackball or keyboard with full control. the entire system & computer seemed to grind to a halt. I've tried to shutdown/restart several times and have the same problem.
I've heard of potential issues using Bluetooth devices with USB3, but my keyboard & trackball do not use Bluetooth
Does anyone know of any workarounds for this problem?
TIA - Luke
Mac mini, OS X Mountain Lion (10.8.4), 2.5Ghz dual core i5