Mouse's Wheel doesn't work!

My Mouse’s Wheel doesn’t work in Rhino 5 64 bit?! why…?!
But it works in RHino 5 32bit…

I tried to unistall and reistall the software(rhino) and the mouse’s driver but it doesn’t work !
I have the same problem with other mouse…:frowning:

Could you help me plese?!?!

Dear Roberto,
Apparently around Sept 18 you installed a nice application from Apple: iCloud64.
This software is simply stripping any decimal value out of the files upon opening them. This is to say that the 0.9 setting for your mouse zooming will now read 0. This won’t help you much in the zooming action.

You may consider removing this application…