When my new Inspiron computer is turned on a 545S model, the monitor, which is also new a S2209W Flat Panel Monitor, shows the normal background picture for a moment, along with a blue center message saying "Auto Detect Analog" , then goes black. The power button in the lower right corner is still white(shows that it has power). If I turn the monitor off and then back on it shows the picture for a second then goes black again. If I hook up my old monitor, the (one I am using to type this) it computer seems to be fine. I just cant figure out to keep the new monitor on, and why do I have to keep pushing the on and off button to see 2 seconds at a time on the screen. Help!!!