mouse will not highlight without shift key and double clicks
I've checked, changed and otherwise reset my Wacom mouse so that it might once again actually highlight something without me holding down the shift key. It also double clicks on a single left key click. This causes untold amounts of wasted time as it deletes 3 messages at a time when I select one to delete. It closes files when I simple wish to move them over to the right or left with that same left click and drag. What in the mud has happened and what can I do about it? Open for suggestions. I have used my bluetooth Apple button and although it is not as pronounced it is still occurring.
imac, Mac OS X (10.6.7), Have two imacs