I don't own it yet, but on all 4 of the sensation's i've had my hands on i thought it was pretty simple. In only two swipes you should be able to get that thing spinning. Oddly enough, I don't really know it adds any real functionality but it does look cool. Are you experiencing any other oddities with your touchscreen or is that it? Just to make sure that it works try swiping across two blank screens and see if you can do it. Two quick little swipes is all it takes.
HTC One | Nexus 7 | HTC Sensation
my retired android devices
Samsung Galaxy S3 | Motorola Bionic | Thunderbolt | HP TouchPad w/ICS | Galaxy S Vibrant | DroidX | Droid1 | Mytouch 3g | HTC Dream G1
proud Android user since October 22, 2008