I recently purchased Adobe After Effects CS4 to use with Vegas. Since I installed it, my PC has been doing strange things such as requiring multiple clicks of the mouse to do anything and the mouse sticking so that it drags things you click on (such as an IE address) and not actually activating it. It happened immediately after installing AE. I did a system restore before the AE install and the problem was gone, then reverted back to the current configuration after the AF install and the problem returns. Anyone eles ever encountered this problem.