Hello,

Lately my computer behaved strangely. Sometimes the screen just blanked when I was working with it and I had to reboot the computer (no screensaver involved).
I have also had error-messages from CMOS (checksum errors and such).
The computer is about 3 years old, so I thought it was time to replace the CMOS-battery. I replaced it (quite easy actually) and after that the computer would not boot anymore.
No matter what I tried. I have put the old battery in place again, but that did not work either.
Computer does not react when I push power-button. I have to turn it off by pulling the plug.

Symptoms are like this:
- when turning computer on, harddisk-light turns on
- computer looks for CD-rom (a bootable one, I guess)
- then harddisk-light goes off again
- computer only acts as an expensive airco (it does not do a thing).
- it does not print anything to the screen
- so there is also nothing like "hit del to enter setup"
- no beeps from CMOS
- the monitor just goes into "Sleep mode", because it does not get any trigger from the computer.

Does anybody have any idea what I can try to change this ? I am a software engineer myself, but am currently quite helpless. Normally I can get these things back to live, but they should at least boot...

Thank you very much,