If you’re running Ubuntu 9.04 in VMware Fusion (2.04) you’ve probably come across the following post from VMware:
Ubuntu 9.04 “Jaunty Jackalope” on VMware Fusion 2
If you upgrade the kernel you’ll have to follow the instructions again making sure to do the following as mentioned in one of the comments:
What did work for me was to:
sudo apt-get remove xserver-xorg-input-vmmouse
and then
sudo apt-get install xserver-xorg-input-vmmouse
I then logged out, restarted the Xserver..