mighty mouse won't open dashboard
For the last year or so, my mighty mouse no longer opens dashboard or any other program as it did when I first got my iMac. It scrolls just fine, and the left and right buttons function perfectly. I have gone into settings several times to try to correct the issue, disconnected/re-connected the mouse, etc, but the problem persists.
Any suggestions of correcting this? I rather like the ability to open dashboard by clicking the scroll ball.
iMac, Mac OS X (10.5.5), 2 GHz dual core, 3 GB RAM