I was experiencing weirdness with a Razer keyboard. I was sure that something was wrong with my setup. It turns out I did not have the most current firmware revision for my keyboard. I did not even consider there was such a thing. Once I upgraded the firmware...no more issues! It may just be the device is not compatible with your new hardware. If there is a way to upgrade the firmware or drivers for the device in question, try that. Otherwise it may be time for a new device. Just a thought...hope it helps.
"If we're the only ones out there...seems like an awful waste of space."
ASUS G75 VX
32GB Kingston HyperX PnP
OCZ Vector 256GB SSD
1TB HDD
ASUS MVIF 4770k @ 4.5GHz water cooled with RayStorm D5 AX240 kit
4x4GB G.SKILL Trident X at 2400MHz
2xASUS Direct CU II OC GeForce GTX 660 Ti in SLI @ +130/+300
Samsung 840 Pro 256GB Win 8.1 Pro and 2TB WD HDD storage
Seasonic 860 Platinum all at home in Corsair Vengeance case
Razer DeathAdder 2013 and BlackWidow Ultimate 2013 keyboard