I bought a Philips 109S20 19" monitor from OfficeDepot.com. It works perfectly for the 1st few weeks but I noticed a few strange problems recently (still within a month old). I have a separate power switch for my monitor and speakers. I turn on my computer first and then turn on the switch for my monitor after the system is ready. 1) Problem 1: If I turn it on after the PC finishes bootup, I would not be able to turn on the monitor quickly. I have to press on keyboard, move around with the mouse for many times, and eventually it would be on after 2-3 minutes. Before it eventually turns on, I can see it struggles to turn itself on a few times (being a little lighter than pure black and blinks off after less than a second or so). I think it worked fine with the same procedure when I first got it. If I turn it on right when I turn on the computer, everything would be fine. I would see the BIOS, system selections, Win2000 startup screen, everything works fine. For a test, I reconnected to my old monitor and did the same procedure and my old monitor turned itself on right away after I turned the switch on. Then, I swtich it to my philips while the computer is on (I know it's dangerous.), and it turned itself on right away too. 2) Problem 2: It has problem with 1152X864 when I switched between resolutions. It would become complete black. I have to either cancel it or sometimes heat return a couple of times to get it working. Other resolutions (e.g. 800X600, 1280X1024) switch right away. 3) Problem 3: Another time, the screen goes complete black for a few seconds when I hit backspace. 4) Problem 4: I moved it to another PC. Did the same thing (turned it on after system booted first), and it gave the following message: 94K/143Hz Frequency is out of range when actually it's 800X600 at 85 Hertz It appears that the monitor has problem telling the current resolution, refresh rate if it turned on after the system is booted up. I might do more testing, switching this weekend. Before all the hassles, I wonder if you have any idea what's wrong with the monitor. Should I have it replaced since it's less than 1 month old? Thanks, Changhsu Liu The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com