Solving computer problems

Problem: Incorrect characters appear on the screen.

Solution: Did you install the operating system or application program correctly? If they are installed and configured correctly, have the computer serviced.

Problem: The screen stays on even after you turn off your computer.

Solution: Press and hold the power switch for 4 seconds or over to turn off your computer.

Problem: Missing, discolored, or bright dots appear on the screen every time you turn on your computer.

Solution: This is an intrinsic characteristic of the TFT technology. Your computer’s display contains multiple thin-film transistors (TFTs). A small number of missing, discolored, or bright dots on the screen might exist all the time.

Problem: “Unable to create overlay window” message appears when you try to start DVD playback.

or

You get poor playback or non at all while running video playback, DVD playback, or a game.

Solution: Do either of the following:

vIf you are using the computer display and an external monitor simultaneously with 32-bit color mode, change the color depth to 16-bit mode.

vIf you are using a desktop size of 1280x1024 or larger, reduce the desktop size and the color depth.

Battery problems

Problem: The battery cannot be fully charged by the power-off method in the standard charge time for your computer.

Solution: The battery may be over-discharged. Do the following:

1.Turn off the computer.

2.Make sure that the overdischarged battery is in the computer.

3.Connect the ac adapter to the computer and let it charge.

If the optional Quick Charger is available, use it to charge the over-discharged battery.

If the battery cannot be fully charged in 24 hours, use a new battery.

22ThinkPad® A21e Service and Troubleshooting Guide

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IBM A21e manual Battery problems
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A21e specifications

The IBM A21e is a notable entry in the realm of Lenovo's ThinkPad series, primarily aimed at the educational sector and consumers seeking a reliable, budget-friendly option. Released as a part of IBM's initiative to enhance educational technology, the A21e brings together essential features, practical technologies, and robust characteristics that cater to students and everyday users alike.

One of the most distinguishing features of the A21e is its display. The laptop typically comes with a 14.1-inch screen, offering a resolution of 1024 x 768 pixels. This size provides a balance between portability and usability, making it ideal for students who need to carry their devices between classes without sacrificing screen real estate.

The keyboard is another highlight of the A21e. Renowned for its tactile feedback and comfortable typing experience, the spill-resistant keyboard enables users to write long essays or perform programming tasks with ease. Additionally, the laptop's design includes function keys that make it convenient to perform common computing tasks swiftly.

Under the hood, the A21e is powered by Intel processing technology, typically featuring Intel Celeron or Pentium processors. This ensures that the device is equipped to handle daily tasks such as word processing, web browsing, and multimedia playback. The laptop usually features a discrete graphics option for users who may require a bit more graphical power, catering to casual gamers or multimedia creators.

The memory options for the A21e generally range up to 1GB of RAM, which supports smooth multitasking for basic applications. With a hard drive capacity extending to 40GB or more, users have ample storage for documents, media files, and educational resources. It also features a DVD-ROM drive, allowing for the playback of multimedia and installation of software from physical media.

Connectivity-wise, the IBM A21e supports a variety of ports, including USB 1.1 for peripheral connections, a multimedia card slot, and an Ethernet port for networking capabilities. This emphasis on connectivity ensures that users can integrate the laptop into diverse environments, whether for classroom use or home study.

The laptop's build quality contributes to its perceived durability. With rugged features designed to withstand the rigors of school life, the A21e stands as a practical choice for students and educational institutions alike. Overall, the IBM A21e combines essential features with flexible technologies, making it an enduring tool for learning and productivity.
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