4 Product Specific Problems . . . . . . . . . . . . . . . . . . . . . . . . 55Troubleshooting the Card Reader . . . . . . . . . . . . . . . . . . . . 565 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58WARNING: Safety Instructions . . . . . . . . . . . . . . . . . . . . . . 58FCC Notices (U.S. Only) and Other Regulatory Information . . . . 58Contact Dell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 586 Setting Up Your Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59Setting the display resolution to 3840 x 2160 (maximum) . . . . . 59If you have a DellTM desktop or a DellTM portable computer withinternet access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60If you have non DellTM desktop, portable computer, or graphiccard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61Procedures for setting up dual monitors in Windows Vista®,Windows® 7 or Windows® 8/Windows® 8.1. . . . . . . . . . . . . . . 62