Mouse laggy when Elements 1 TB plugged in

My USB2 mouse gets laggy when I plug in my Elements 1 TB USB3 drive. If I plug it into a USB3 port it works fine (it is a USB2 mouse). My USB3 Passport does not cause this issue, just the Elements.

Any thoughts? Thanks!


Intel DX78SI Extreme MB

i7 3820 3.4 Ghz


Windows 7 x64

Latest Intel BIOS


As a recommendation, test the drive with the DLG Tool.

How to test a drive for problems using Data Lifeguard Diagnostics for Windows

Dig tests all pass

My bad, motion detector I installed recently was bugging up the wireless mouse.