I know when I started using Oracle and VMs, I would run into many small issues! Luckily there are many resources available to help you figure them out. Mouse pointer integration was one of those pesky problems I personally couldn't figure out. But after some research, I was able to solve the problem on my own VMs.
Remember, just like in the military, you don't have to know all of the answers, you just have to know where to find them! WYWM is the perfect resource for that information! So don't hesitate to ask one of us!
We love to help!