Toshiba Satellite A25-S2791 User Guide - Page 224

224 If Something Goes Wrong Resolving a hardware conflict The display mode is set to Simultaneous and the external display device does not work. Make sure the external monitor is capable of displaying at resolutions of 800 x 600 or higher. Devices that do not support this resolution will only work on your computer display. Small bright dots appear on your TFT display when you turn on your computer. Your display contains an extremely large number of thin-film transistors (TFT) and is manufactured using high-precision technology. The small bright dots that appear on your display are an intrinsic characteristic of the TFT manufacturing technology. Disk drive problems Problems with the hard disk or with a diskette drive usually show up as an inability to access the disk or as sector errors. Sometimes a disk problem may cause one or more files to appear to have garbage in them. Typical disk problems are: You are having trouble accessing a disk, or one or more files appear to be missing. Make sure you are identifying the drive by its correct name (A: or C:). Error-checking Run Error-checking, which analyzes the directories, files and file system on the disk and repairs any damage it finds. To run Error-checking: 1 Click Start, then click My Computer. 2 Right-click the drive you want to check and click Properties. The drive's properties box appears.