Question about Dell Dimension 3000 PC Desktop

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One of our computers has lost internet connection; the start/task bar have changed color as well.

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Hi
You don't think much about your computer's "Start" bar (formally known as the "taskbar") until, perhaps by accident, you find it at the top or side of your screen and wonder how it got there. The fact is, you can customize many things on the Windows taskbar. From the color, to what icons are displayed, to its postition on your screen, you can customize it to your preferences in just a few simple steps..

* Change the color of your start taskbar by right clicking on any open area of your desktop. Select "Properties" and then the "Appearance" tab. Select the second drop down option which is "Color Scheme." Your standard Windows options are Default blue, silver, and olive green. Select your color of choice, and then select "Apply." Wait for the computer to update and the start taskbar to change color

For losing internet connection...
You try with another network card... Try this to:
start, run, cmd, ping 127.0.0.1, if you don't have answer, or the answer isn't constant your network port is start to die.
And how i said up, install a network card and try with this.Also, upgrade the network driver of the PC.
However Network-connection problems are infuriating. Finding their source requires a step-by-step approach. Before editing your Registry for the umpteenth time or tossing your router into the trash, run through this network-troubleshooting checklist:
Temporarily disable your software firewall. It sounds dumb, but often it's your firewall that's blocking your network connection. Even if the firewall has worked flawlessly for months, a small configuration change or automatic update could have caused a problem.
At least twice this year, Windows XP users of Check Point Software's Zone Alarm personal firewall have lost their ability to connect to the Internet due to a Windows update. Windows Secrets contributing Editor Susan Bradley described this problem in her Oct. 16 Patch Watch column (paid content).
This alone is not a good reason to stop updating, though. It's true that patches can introduce problems with firewalls, but subsequent fixes that remedy the issue will often appear within 24 hours.

Check the physical connection. Make sure the router, modem, and other network devices are plugged in and powered on. Are the network cables between PC and router still connected firmly? With a device's power switch off, it doesn't hurt to unplug the component and then plug it back in again to make sure the contact is solid. If weak power-cable connections are ruled out, simply powering the devices off and back on can sometimes be all the resetting your network link needs.

Renew your connection. Changes elsewhere on the network can sometimes knock out your connection. To reconnect quickly, click Start, Run in XP (or press the Windows key in Vista), type ipconfig /renew, and press Enter.

Update your firmware and drivers. Makers of routers and network adapters may be caught unawares by patches to operating systems (such as the ones in Vista noted above). But the vendors often issue firmware or driver updates that fix the problems. Check the support pages of your router and adapter manufacturers' sites for downloadable updates.

Return to default settings. Often, we are our own worst enemies as we poke around the configuration settings of our routers and network connections. You may not remember that you turned on your router's MAC filtering, but doing so could have blocked all of your devices from connecting, just the same.
In general, it's best to change settings one at a time and observe the results of the change before making any other alterations to your system. If you don't see an obvious way to return your hardware and software to their default settings, you may have to uninstall and reinstall the device or program to regain its original settings.
In all fairness, Vista isn't the only version of Windows that experiences network glitches. XP has its own series of connectivity aggravations, as you can see by a search-engine query of Microsoft's support center.
If your connectivity problems aren't resolved by using the points discussed above, you may be suffering from an even more obscure issue. If so, ruling out the tricky configuration problems I describe here may at least help you isolate the real problem and restore your network link.

Thanks for contacting fixya.com

Posted on Nov 19, 2009

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1 Answer

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