I have this problem ... I use a switch between 2 PC's ... For this reason, I use only one monitor, keyboard and mouse instead of 2. The monitor is a HP 1702. Time to time, when I switch between computers, monitor enters into "Sleeping mode", but only for one computer. Even if I try to reboot the computer with the problem, the monitor won't display anything except "Going to sleep" ... Also, if I try to connect the monitor directly to the computer which is still working, it;s OK. If I want to do this with the other computer ... Nothing. I tried and I connected the computer to a CRT monitor and, after that, LCD woke up. So, where is the problem? Should I change the monitor everytime when LCD is going to sleep and forgetting to wake up?