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There might be loose parts or connection inside the laptop. Is your laptop still under warranty. If it is still under warranty, i suggest that you have it repaired at our depot repair department. Opening the laptop on your own will void the warranty.
How to use the function (Fn) keys on the keyboard - ThinkPad T40, T40p, T41, T41p, T42, T42p, T43, T43p
Switching the display output location. Switch between the computer display and an external monitor. If an external monitor is attached, the computer output is displayed in the following three patterns by turns:
External monitor (CRT display)
Computer display and external monitor (LCD + CRT display)
Computer display (LCD)
Notes:
For any operating system other than Windows 2000 or Windows XP, no additional procedure is needed. Just press Fn+F7.
This function is not supported if different desktop images are displayed on the computer display and the external monitor (the Extend desktop function).
This function does not work while a DVD movie or a video clip is playing.
To enable this function in Windows 2000 and Windows XP, the following procedure is needed:
When you log on to Windows 2000 and Windows XP for the first time, press Fn + F7 and select a display-switching function in the Initial setup window. Since in Windows 2000 and Windows XP multiple users can log on to a single operating system by using different user IDs, each user needs to select the function in the initial setup window when logging on for the first time.
If the Fn + F7 key combination have been assigned to a presentation scheme function, start Presentation Director, and change the settings.
firstly make sure if you user Windows XP , you install service pack 3 in your system before the wireless configuration,this is not necessary but it protect your system against hackers,If you user Windows Vista you need to install Service pack 1. many wireless technologis in market like 802.11a and 802.11g,most popular is 802.11g.firstly you need some necessary equipment for wireless network technology- 1-Wireless router 2-wireless network adapter 3- Broadband Internet connection firstly unplug the cable modem,connect your wireless router to your modem,your computer will through wireless connect to your router, and the router will send communications through your modem to the Internet. turn on the system and open Internet Explorer and type in the address to configure your router.You might be prompted for a password. The address and password you use will vary depending on what type of router you have, so refer to the instructions included with your router. The exact steps you follow to configure these settings will vary depending on the type of router you have. After each configuration setting, be sure to click Save Settings, Apply, or OK to save your changes. I think this is helpful to you.
If you are running Windows XP go to control panel open display go to screen saver tab and click power then go to advanced and configure the power buttons.
Hello, go to the lenovo.com website, and type in your model number. The page will display all the hardware. Choose the audio, and download it to your desktop. Once finished execute it, and it will go to your main drive,(mine is C:\drivers\win folder). Now open up control panel, go to systems, hardware tab, and device manager. Right click on the audio, and click update driver. The wizard will open, and ask if you want to connect to the internet, choose not this time, and next. The next windows that pops up, make sure you choose install from a specific location, then click on browse, and go to the drive where the driver is installed. This shouls sodve your problem. The same goes for the ethernet, video, modem, and many other deivces. I hope this helps.
Just to try the obvious...
The volume buttons on the laptop underneath the screen work independently to the volume controls in Windows. Have you tried pressing and holding the volume up button and then playing a sound?
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