Just wondering if anybody else has a problem with their DRH Slimline?. I have just put mine up and it seems that it does not retract properly. After managing to get the thing to go up in one go, the left hand side of the screen hangs down about an 2". Could this be the way that I have mounted it to the ceiling?, has anybody else experienced this?. Don't get me wrong, I love the screen and great customer services from DRH Screens, but I am a bit dissapointed if this is not down to an error on my fixing.