I must once again appeal to the collective wisdom of this group. Since installing Lion on an OWC PCIe card on my 2012 hex core, I've twice had to restart due to both bluetooth devices (magic mouse and trackpad) freezing up. On restarting, I get the grey apple boot screen with the progress bar at the bottom, which takes a while to complete before giving me the desktop. I've only ever seen this when updating firmware. I've researched this and have come up with the possibility that this is either a "bug" in Lion, or there may be a problem with my boot drive, or, of course, something else entirely. I've run repair permissions and the OWC drive checks out. Any thoughts?