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So I just discovered the cause of my mouse's "random" lagging. I have a Microsoft 3500 USB mouse and a Seagate FreeAgent GoFlex 500 GB external hard drive. When the former is plugged in, everything is fine. But when both of them are plugged in, the mouse pointer slows down and lags a lot (or jerks).
All my drivers are up to date and I'm on Win 8.
Any possible diagnostics/solutions?
Does this persist for as long as the drive is plugged in, or for a while and then stops? Where are they plugged in? On a laptop, dock, desktop? Which ports? Same hub? – Austin T French – 2013-04-03T23:22:05.830
Yes it persists for as long as both the devices are plugged in. It's a laptop (Dell XPS 15z). USB ports. – None – 2013-04-04T00:06:53.060
Does your HDD have an external power supply? – cutrightjm – 2013-04-04T06:31:18.470
No it does not.... – None – 2013-04-04T16:19:24.673