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Check your software to verify that the volume settings are not turned off. check both the System and Multimedia in Control Panel to ensure that you have the proper settings for your sound card (consult your sound card/audio subsystem manual and your Windows documentation). Check your software to verify that the volume settings are not turned off. Most likely cause: software driver not loaded. One or more of the steps described below may require you to work inside your computer. Please read the WARNING at the beginning of this chapter before you proceed. 1. If you have Windows XP, Windows 98, Windows Me, Windows NT, or Windows 2000 check both the System and Multimedia in Control Panel to ensure that you have the proper settings for your sound card (consult you sound card/audio subsystem manual and your Windows documentation). Check your software to verify that the volume settings are not turned off. 2. Make sure your audio CD is not upside-down (see “CD-ROM Drive,” Chapter 3). 3. Remove the system cover (see “Opening Your Computer Case,” page 6-10) and verify that you have a small audio cable connecting your CD-ROM and sound system. This cable is different than the large flat ribbon cable that connects your CD-ROM to the controller. Refer to your CD-ROM and/or sound card documentation for more information. Keyboard System does not recognize the keyboard Most likely cause: improper keyboard connection. 1. Verify that the keyboard cable is properly installed (see “Identifying Ports” in Chapter 2). 2. Try another keyboard (if possible) to isolate the problem. Mouse The mouse cursor does not move or moves erratically Most likely cause: loose mouse cable or mouse driver is not loaded. 1. Ensure the mouse cable is securely connected to the mouse port or COM port (see Identifying Ports” in Chapter 2). If you have a loose connection, reseat the cable. Serial mice should function properly at this point. You will need to reboot your computer if you have a PS/2 mouse. 2. If the mouse is the type that has a mouse ball underneath it, remove the mouse ball and clean it and the rollers. Use a cotton swab moistened with rubbing alcohol to clean your mouse rollers. Do not use water. 3. Some mice include software that extends their functionality. This software may conflict with other software or hardware in the system. Un-install this software and restart the -36 system. Windows recognizes a standard PS/2 or Serial mouse and installs generic drivers. If this solves the problem, then there is a conflict between the mouse software and some other program or hardware in the system. Call CTL Technical Support for help. system. Windows recognizes a standard PS/2 or Serial mouse and installs generic drivers. If this solves the problem, then there is a conflict between the mouse software and some other program or hardware in the system. Call CTL Technical Support for help. . Try a different mouse or try it on another computer to see if it is defective. Network Interface Card System detects card, but you cannot access the network Most likely cause: bad network connection, improperly configured network protocol, or defective network card. 1. Make sure that the network cable is properly connected. Make sure that the hub is powered on and that the connected ports are operational. Switch ports and cables to isolate possible defective ports/cables. Refer to your network hub documentation for further information. 2. Make sure that your network protocols are configured according to the network requirements. Refer to your Windows documentation, network card documentation, and hub documentation for further information or contact your System Administrator. 3. Check the LED next to the network connector on the card. If it is not indicating network activity by blinking, the network card or hub may be defective. Fax/Modem System does not recognize the fax/modem Most likely cause: improperly configured fax/modem. 1. For Plug and Play operation, make sure the modem is set to Plug and Play mode. If your modem does not have jumpers, use the utility program that came with your modem to configure it. Refer to your modem documentation for further details. 2. If your modem is not Plug and Play, make sure the resource settings such as IRQ and I/O address do not conflict with other system devices. Use the Windows Device Manager to check and adjust your settings. You may also need to adjust your modem jumpers. Refer to your Windows and modem documentation for instructions. System recognizes fax/modem, but cannot dial-out Most likely cause: incorrect fax/modem driver or bad fax/modem. 1. Make sure the telephone line is functioning properly, is not in use by another party, and that it is plugged into the modem's LINE (or TELCO) jack and into a TELCO jack tying into your phone system. 2. Make sure the correct fax/modem drivers are installed. Obtain the latest version of this driver from the manufacturer if possible. Refer to your modem documentation for details...

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