No display will not shut off. - Heating & Cooling

What is the error code displayed????

The software got stuck whil shutting down. Try resetting it to factory defaults after saving your phone book and other valuable info on there.

There are two problems here. The Rebel XT flash has an issue of not popping up when the button is pressed. See this page for some discussion and suggestions:
http://photography-on-the.net/forum/showthread.php?t=203699

Is the camera otherwise powering up and taking pictures and downloading them? Make sure it is not a battery problem

The display not showing up? If this only occurs in the shooting mode, press the DISP button . Another reason the display shuts down is when you look through the viewfinder- a sensor knows your cheek is next to the screen and shuts off the display. If anything blocks the sensor (located under the viewfinder, the display shuts off.

If the problem also occurs when you are trying to view the pictures (when you press the button with the little triangle) it is more serious and shows there is something wrong with the hardware of the LCD display. In that case consult Canon support.

are you shutting down using the power button? It may be programmed to do another action ( standby or hibernate ).
start menu > control panel > performance/maintenance > power options > advanced tab .

BENQ Q7C4 monitor shuts down after 5 seconds of login screen display

Throw it away. The product sucks. I know, I'm throwing one away right now and I"ll NEVER purchase one again.

This is the speed limit control and set to off does into i-drive menu/setting/car setting/speed limit.

you have a faulty usb cable. try to buy another usb cable which supports usb2.0 for faster data transfer.

Hey guys! Im glad you found my solution on my blog, and posted it here. I hope you ccan fix yours, or get it replaced on warranty. Im happy to help you with anything, the capacitors i think was 4,7 uF, 100volt, not sure. 
Here is the link to my solution: http://lemurt.wordpress.com/2008/08/18/defenition-of-waranty-void/
:D
/ lemurt

The control is automatically set to turn off the oven after 12 hours baking or 3 hours broiling should you forget and leave the oven on. If you want to remvoe this feature do the following steps: 1. Press and hold, at the same time, the BAKE and BROIL buttons for 3 seconds, until the display shows "SF". 2. Press the DELAY START TIME button. The display shows "12Shdn" for 12 hour shut off. Press the DELAY START TIME button again. The display will show "no Shdn" for no shut off. 3. Press the START button.