Shaking image on external monitor when Satellite A200 is running on AC

Hello
I have this problem which is driving me crazy .... I bought an external monitor for my Toshiba Satellite A200-1s9 laptop but the problem with it is that the image, on the external monitor, is shaking. I tried another monitor, the same, another cable, same problem; the only way how to stop it is to unplug the AC from the laptop.
I also tried to move the monitor further from the laptop but nothing.
I can making stop shaking so hard only if I switch to the AC profile from FULL POWER to Save power ... but even with this the image is still shaking a bit.
So basically there is a magnetic field around there, probably in the laptop, which is making my image shaking like crazy ... does anybody know how to stop it?
tx

Hi,
hmmm...
I don't think that this has to do something with magnetic fields.
Cause it is related to the power consumption of the computer, it seems that there is a problem with the AC-Adaptor.
If it has to deliver much 'juice', it's condensators to keep the voltage absolutely stable are perhaps too weak.
Such instabilities ( which have the 50 Hz frequency of the power supply ) can disturb the signal to the monitor.
A solution for that ? ..if you know how to solder some fat condensators somehow in between...
Or:
It's a grounding problem
I never heard from such problems with LCD-Monitors (VGA out??). Mostly this is the case when you you use analog video out,
leading to no color on the TV.
Do you have an annoying buzzing when you connect audio out to an amplifier ? That would be a sign for that.
I had such a problem and solved it by plugging my laptop on AC on another circuit in the house than my audio devices
So experiment with that.
First: disconnect all other stuff ( printer, sticks, antennas, everything ) These are nasty problems with lots of possible interferences.
Let me know!
Greets Matz

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