I have an Acer 22" Widescreen (AL2216Wbd) and when I turn the monitor off, then on...with the PC still on, I get a "No Signal" displayed. I have dual monitors, and when I turn it off/on to my secondary monitor (a Dell), I have no problems; it gets a signal. The Acer is connected by DVI and the Dell by VGA. The only way to fix it is to restart the PC & it sucks. I updated the BIOS, video card driver, and checked the connections. I have a Diamond Stealth S120 256 MB AGP card (I got it for $10 at Staples). I might buy a new DVI cable since I used the one that came with my Acer. Anyone else have ideas? Read it could be the monitor itself, the PSU, or CMOS battery. Have no freaking idea.