I've been running different builds of Android on my Kaiser since around October of 2010 and have yet to run into this one.
After initial boot and the screen blanks after 1 minute (what I have it set to do), if I try and press power (or "end"), the phone wakes to a blank screen.
I have not run into this problem on my spare phone yet but my assumptions are that the OpenGL driver is not being set correctly after wake-up. If I keep the screen on, everything is fine. Once the phone sleeps, it won't wake up. It does react as if the screen works because the phone will vibrate after holding power or end for a second or two. I can even get the phone to shut down, remembering where to press to shut it down, all with a blank screen.
Thoughts, theories, etc.?