168 Chapter 11 : Troubleshooting2 Slide out the keyboard (see Slide out the keyboard), and then press thetwo clasps (c) at the bottom corners.Screen and performanceThe screen appears blankTo save power, the screen dims automatically after a period of inactivity, andthen turns off.If you have inserted or replaced the battery, you need to press and holdpower until you see the Palm logo on the screen. Otherwise, followthese steps in sequence if you see a blank screen:1 To brighten the screen if it has dimmed, tap the screen.2 To turn on the screen, do one of the following:• Press power . Drag up to unlock the screen.• Slide out the keyboard.• If the keyboard is out, press any key.3 Look closely at the screen. If you can see a dim image, try adjusting thescreen brightness (see Change screen brightness).4 If the problem persists, connect your phone to the AC charger (seeCharge the battery). If you see a dim image, try to restart your phone(see Restart your phone).5 If that doesn’t work, press and hold power and slide the ringerswitch three times to restart your phone. Please be patient while yourphone starts up.An application is not responding to tapsTry the following steps in sequence:1 Open Device Info and restart your phone (see Restart yourphone).2 If the screen does not respond to taps at all, press and hold powerand slide the ringer switch three times to restart your phone. Pleasebe patient while your phone starts up.Applications are running slower than usualTIP Be sure that any third-party applications you install are compatible with thePalm ® webOS™ platform. Applications written for earlier Palm smartphones usingthe operating system or Windows Mobile are not compatible with your Pre Plusphone. If you can try a free version of the software before purchasing it, you cantest it first to make sure it works properly. In App Catalog, you can purchase theClassic application from MotionApps to run Palm OS applications on your Pre Plusphone.