I just took deleivery of my new w220t and right i was finished initializing the system I was prompted to update SimpleTap. So being the believer I am I tapped on OK. After the install I was propmpted to re-boot and I did. Upon re-booting my cursor was gone. My solution was to do a System Restore, which did bring it (the cursor) back. So I am OK at this time but I am concerned about future updates or this file that is sitting in my Downloads folder called "Simple Tap Setup64".
The issue might be happened due to some conflict as updating the software does not have issue.
However, if in future you face this issue then you can uninstall TouchPad driver and install the update TouchPad driver.
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