Windows 7 Weird mouse behaviour


New Member
Apr 23, 2011
Been having a weird problem recently. Only seems to happen when the computer has been unattended for some time.

When I go into any application where you (use the mouse) to select one item, several random items are selected all at the same time. In Thunderbird, for example, selecting one folder, selects 2 or 3. In explorer, selecting one item highlights many more; and when I click on Firefox (to re-open the window) it kicks off another instance of the program; clicking on a pinned tab (in Firefox), doesn't open it but protects/locks it instead.

Closing & restarting the progs fix it, but it affects every running program, so I usually end up rebooting the system.

Swapped the mouse & tried a different USB port. Doesn't happen very often but it still keeps happening.

Any ideas as to what's causing this ??

OS Version: Microsoft Windows 7 Ultimate, Service Pack 1, 32 bit Processor: Pentium(R) Dual-Core CPU E6700 @ 3.20GHz, x64 Family 6 Model 23 Stepping 10 Processor Count: 2 RAM: 3519 Mb Graphics Card: ATI Radeon HD 4300/4500 Series, 512 Mb Hard Drives: C: Total - 99898 MB, Free - 28414 MB; D: Total - 1807727 MB, Free - 892196 MB; Motherboard: ASRock, G41M-S3, Avast! updated and Enabled
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