Strange Mouse problems 10.8.2

[WandaS]

Since updating to 10.8.2 when trying to drag a single folder to another location
on desktop, several folder will randomly be highlighted and can't be dragged.
Also, selecting folder to change folder name results in folder opening up instead of allowing name change. It occurs with any brand mouse I use.

Please Help
Thanks

 

[desertman]

I remember having something like that sometimes with files and folders from a smb-mounted server volume. What helped was restarting the Mac.