Dead PC?No signal?

This is another computer problem that I want to discuss in here. When it happens....
You cant boot to your Windows..

There are several reasons that causes this. But the main reason is the monitor of your computer does not receive any signal from the PC...or in other word, motherboard.
But what causes the "main reason"?

• It might happen because of faulty monitor cable.
• Faulty graphic card.
• Insufficient Power.
• Faulty motherboard.
  

1.faulty monitor cable

You can check this by changing the monitor with other monitor.(borrow from your friends or etc...)or try your monitor at another computer.If this solve the problem, change your monitor cable or just buy a new one.

2.If that doesnt fix the problem..check your graphic card(PCI,AGP,PCI-e)for PCI graphic card, try to change the graphic card to another PCI slot.If it still doesnt work, change the graphic card.
(you can read about this in BIOS beep code in this page.It contains useful information regarding graphic card error and how to know when it happens)

3. And if that doesnt fix anything. This might be the reasons. I should put this at no. 1 but i thought you should read the above factors too.Insufficient power delivered by your computer power supply.

Usually this will happen when you add a new hardware to your computer(new HDD, DVD, CDROM, TV tuner, fans,new graphic card).The new hardware might use a lot of power so this causes the display adapter doesnt receive enough power from the power supply.
Sharing power with monitor also causes this. I highly not reccomend you to share your PC power supply with the monitor.Use the AC cable for monitor instead of the 2 connector cable that connect monitor to power supply.This will save a lot of power.

To investigate this problem, disconnect the new hardware or any hardware(HDD, DVD, exhaust fan,etc..) and try to turn on your computer,If it starts, the solution is..get a new power supply with bigger power rating.

If it doesnt fix, probably the problem is the motherboard or the power supply.try another power supply...if it doesnt help..its the motherboard.

Missing Icon in taskbar?

Have you ever noticed that small icons in the taskbar(next to the clock). It shows some program that's running and many of the program is launched automatically during start up.
For example, antivirus, winamp agent, sound,local area connection and etc. Some time, or most of the time, one or two of the taskbar icon disappeared.Have anybody faced this situation?
The program is still running, but yet the icon is not in the taskbar. This seems like a bug that's annoying for me. Especially if the missing icon is the antivirus or sounds. I usually use the icon as a shorcut to enable/disable the antivirus or adjusting the master volume.

There is a bug that caused this.We can fix this easily by:

1. Go to Control Panel >Add Remove Programs>Add/Remove Windows Component.
2. Go to Networking Services and click Details.
3. in the Details window, uncheck the "UpnP user interface"
4. close all windows and reboot.
5. Voila! no more missing taskbar icons. :)