I have an HP w1907 widescreen 19" LCD monitor, and have had it for over one year. I have had absolutely no problems with this monitor, but about a week ago the monitor suddenly starting flashing on and off, and it's progressively gotten worse. It used to begin only when a program was running on the computer, but now it starts doing it as soon as Windows boots up. The flashing occurs every second - I can't even tell what the heck I'm doing on the computer because it's flashing so much. The monitor isn't turning itself off and then back on, and the computer is on the whole time - the monitor just keeps FLASHING over and over and won't stop, like it's losing signal (which I'm assuming it may be?). The computer I'm using is a Dell and it's about 7-8 years old, but still does what I need it to do. The monitor doesn't flash on and off when I boot the computer into safe mode (which is what I'm using right now to type this). I did read online somewhere that it may be the video card in the PC if the monitor works in safe mode, so I'm assuming it's the video card. I did download the most recent update for it, and it worked for maybe about a minute after restart, but then assumed its flashing again. The video card that's installed is the NVIDIA GeForce FX 5200 if that helps, and the OS is Windows XP, the 32-bit version. There has been no trauma to the monitor at all. I am planning on borrowing another monitor to hook it up to see if it still does it, and then we have an extra cable to try too. I don't know what to do! This problem is driving me insane! I would really appreciate any input or advice. Thanks in advance!!