102 www.gateway.comChapter 9: TroubleshootingYou see a “Disk is full” error message■ Delete unnecessary files on the diskette.■ Try a different diskette. Occasionally diskettes are flawed and cannotbe read by the diskette drive.■ Run Error checking on the diskette. If errors are detected andcorrected, try using the diskette again.You see a “Non-system disk”, “NTLDR is missing”, or “Disk error” errormessage■ Eject the diskette from the diskette drive, then press ENTER.■ Make sure that the diskette you are using is IBM-compatible.The modular drive status indicator is lit continuously■ Remove the diskette from the drive. If the indicator stays on, tryrestarting your notebook.DisplayThe screen is too darkAdjust the brightness using the system keys. For more information, see“System key combinations” on page 33.The screen resolution is not correctChange the screen resolution from the Display Properties dialog box.Tips & Tricks For instructions on running Error checking, see “Checkingthe hard drive for errors” inUsing Your Computer whichhas been included on your hard drive. To access this guide,click Start, All Programs, then click GatewayDocumentation.Tips & Tricks For instructions on changing the screen resolution, see“Adjusting the screen resolution” inUsing Your Computerwhich has been included on your hard drive. To access thisguide, click Start, All Programs, then click GatewayDocumentation.