I urge everyone to make a backup of your hard drive. I have been using the same computer to do all my work for 4 years now. loml uses hers to help to create files to transfer to mine that is used for the laser. I spent a few hours a couple weeks ago to create a file to be engraved on 4 marble plaques to be delivered the next Thursday. I ordered the plaques and spent time on other files to use at weekend shows in the future. The plaques arrived and a turned on the computer and nothing happened the hard drive had died nothing was recoverable and I lost all the last 4 years of files. PLEASE backup your information to a removeable drive. Dont lose everything.