26Using Your Dell™ LaptopMemory ProblemsIf you receive an insufficient memorymessage—Save and close any open files and exit any•open programs you are not using to see ifthat resolves the problem.See the software documentation for•minimum memory requirements. Ifnecessary, install additional memory (Seethe Service Manual on the Dell Supportwebsite at support.dell.com).Reseat the memory modules (See the•Service Manual on the Dell Support websiteat support.dell.com) to ensure that yourcomputer is successfully communicatingwith the memory.If you experience other memory problems —Ensure that you are following the memory•installation guidelines (see the ServiceManual on the Dell Support website atsupport.dell.com).Check if the memory module is compatible•with your computer. Your computer supportsDDR3 memory. For more information aboutthe type of memory supported by yourcomputer, see “Basic Specifications” onpage 47.Run the Dell Diagnostics (see “Dell•Diagnostics” on page 32).Reseat the memory modules (see the•Service Manual on the Dell Support websiteat support.dell.com) to ensure that yourcomputer is successfully communicatingwith the memory.Lockups and Software ProblemsIf a program stops responding — End theprogram:Press simultaneously.1.Click the2. Applications tab on the top.Select the program that is no longer3.responding