Hardware Sucks!

[Dicky]

Hello! If I use my monitor with my amiga more than half hour of work and resets it, the computer isn't boot up. If I disconnect the monitor and reset it again the amiga starts. If I use of my friend's monitor the error isn't come out.
Hardware: A1200 Blizzard1230/30 16MB+Mitsubishi Monitor
Please Help Me!!
Thanks, Dicky.
email: arpirito@freemail.hu

[Dicky]

Thanks for your answer!

The monitor connected to the same way as usual, and I dont have any flicker fixer. It can use the 15-24-30khz. It's an old one but perfect monitor. It makes this error since few months.  I was use it for years before..... I don't understand, but no one else.
At the monitor service the problem not appears, coz they don't have an AMIGA. He-He!
Bye, Dicky...

[Dicky]

No, If I use other monitor on the same connection, the problem not appears.

On the Mitsubishi it appears on even pal or dblpal screemode too.

Turn on the machine, use it about an hour, presses CTRL+A+A and the computer resets, but not starts to load the WB. If I disconnect the monitor and press again CTRL+A+A the computer starts to boot. If I connect the monitor right after then, I can use it again until the next reset.