Toshiba Portege 4005 User Guide - Page 205

205 If Something Goes Wrong Resolving a hardware conflict Check the serial port settings to make sure the hardware and software are referring to the same COM port. Check the communications parameters (baud rate, parity, data bits, and stop bits) specified in the communications program. The modem is on, configured properly, and still won't transmit or receive data. Make sure the line has a dial tone. Connect a telephone handset to the line to check this. The other system may be busy or off line. Try making a test transmission to someone else. Problems with the CD-ROM or DVD-ROM drive You cannot access a disc in the drive. Make sure the tray which holds the CD-ROM or DVD-ROM is closed properly. Press gently until it clicks into place. Open the tray and remove the disc. Make sure the tray is clean. Any dirt or foreign object can interfere with the laser beam. Examine the disc to see if it is dirty. If necessary, wipe it with a clean cloth dipped in water or a neutral cleaner. Replace the disc in the tray. Make sure that the disc is lying flat, label side uppermost. Close the tray carefully, making sure it has shut completely. You press the CD-ROM or DVD-ROM eject button, but the CD-ROM or DVD-ROM tray doesn't slide out. Make sure the computer is connected to a power source and turned on. The CD-ROM or DVD-ROM drive eject mechanism requires power to operate. If you need to remove a disc and cannot turn on the computer (for example, if the battery is completely discharged), use a narrow object, such as a straightened paper clip, to press the manual eject