[ubuntu] USB Mouse Sluggish after cold boot

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http://ubuntuforums.org – I have been running 12.04 LTS (fresh install) for 4 months, upgrading from 10.04 LTS. I apply all updates when notified. The hardware is Intel i5 on a Gigabyte 1155 M/B with no additional graphics adapter. I do not use the Unity interface, only the latest gnome. My keyboard and mouse are the Logitech S 510 combo that works fine in 10.04 LTS, on Mint, Centos/Red Hat and . . . . Windows. What happens in 12.04 is that almost always on cold boots the mouse is sluggish, very slow. Ir reminds me the behavior I get when controlling a machine from a remote control program like team view on a slow (Hardware)