While using Vmware Player to create a test environment, one of the VMs had this unique problem: the mouse moved the pointer, but did not register any click. After digging a while I found a great article at VMware site and wanted to share this with you.
To fix that you gonna have to edit the .VMX file (turn the VM off, then open it on notepad), and change the value of a few lines. Save it, start the VM, problem solved. The lines we want to change are:
The full article is: Mouse clicks are not recognized in a VMware Fusion virtual machine
EDIT: as it turns out, changing those lines made the mouse work, but the keyboard not. To fix it I changed the lines again: the final value (with working keyboard and mouse) is as follows.
usb:0.present = "TRUE"
usb:0.deviceType = "hid"
usb:0.port = "0"
usb:0.parent = "-1"