I read a similar post in the forum, but my problem is different.
Sometimes, without particular reason, the left and right clicks of the mouse don't work, but I can move it.
The keyboard instead works always, so I can use the system with it.
I observed that sometimes the mouse stops to work when I open a window, and then if I close it trought the keyboard, clicks of the mouse works again.

I would continue to use openSuse, like I do since several years, but if I don't solve this problem in this month, I think to install the next release of Ubuntu.
I don't want to leave openSuse, KDE and its netbook plasma (I revalued this workspace recently).