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My browser cannot find a site I bookmarked. The World Wide Web is constantly changing. A site you bookmarked yesterday may not be available today or its server may be down for temporary repair. Try again later. The Windows® XP operating system can help you If the operating system has started properly, but you still have a problem using your computer, the online Help can assist you in troubleshooting the problem. To access Windows® XP Help and Support: 1Click Start, then click Help and Support. The Help and Support window appears. 2Then do one or both of the following: .In the search field, type the topic of the problem with which you need help and follow the on-screen instructions. .Click a problem about which you would like help from the listings and follow the on-screen instructions. You can connect to Support Online by clicking Support from the menu. Resolving a hardware conflict If you receive an error message telling you there is a device driver conflict or a general hardware problem, try using Windows® Help and Support to troubleshoot the problem first. For help on hardware conflicts: 1Click Start, then click Help and Support. 2Click the Hardware link in the window’s left pane. A list of category links appear. 3Click the Fixing a hardware problem. 4Choose from specific topics and follow the steps. If there is still a problem, the operating system should display a message that explains what the conflict is. A plan of action The smooth operation of the system depends on the interaction of all devices, programs, and features. If the system or one of its attached devices is not working, resolving the problem can be time-consuming and frustrating. The recommended procedure for getting multiple devices to work together is to add and set up one device at a time. After you add each device, test it to make sure it and all previously connected devices work. The device most recently connected to the system is the one most likely to be causing a hardware conflict. Resolving hardware conflicts on your own Computer components need resources to accomplish a task. A device, such as a disk drive or a modem, needs a channel to the computer’s Central Processing Unit (CPU). It also needs a direct channel to the computer’s memory to store information as it works. These channels of communication are commonly referred to as system resources. The channel to the CPU is called an Interrupt Request (IRQ) because it interrupts what the processor is doing and requests some of the processor’s time. Similarly, the data required by the device is stored in a specific place or address in memory called the Direct Memory Access (DMA). The DMA provides a dedicated channel for adapter cards to bypass the microprocessor and access memory directly. If two or more devices use the same DMA, the data required by one device overwrites the data required by the other, causing a hardware conflict. There are three things you can do to resolve hardware con...

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