I'm running Fusion 4.1.1 on a MacBook Pro under Snow Leopard 10.6.8.  There are two users set up on the Mac.  If I run Fusion when logged into one of the Mac users and the switch away from that user to the other user (if the other Mac user is logged in) using "Fast User Switching" I get no mouse on the Mac side!  I can get the mouse back by using the keyboard to call up the "Force Quit Applications"...I don't actually have to force quit anything....just calling up that dialog seems to "reset" the Mac so it recognizes the mouse.

This is on a MacBook Pro, and both the trackpad and connected USB mouse are either both active or both inactive.

Anyone have any experience with this and can propose a solution other the kludge of calling up the "Force Quit" apps item?