The unit powers on, lights one and 2 come on, and that is it. My IBM buddies tell me it is because I don't have the mainframe to test it on. No evidence of screen burn. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2793 / Virus Database: 2629/5920 - Release Date: 11/26/12