I been noticing for the last couple days that when I turn on my computer and then my monitor(22inch lcd) that my monitor does not turn on.

I push the "on" button and the blue light comes on but the screen is blank. I usually have to then restart my computer and then my monitor will show in the upper left hand corner a dialog bog that says "analog" and it is flickering.

Then everything goes to normal.

Thinking it is the power supply but at the same time the tower is a year old(it came with a power supply). So when I take that into consideration I am not sure.