LCD Monitor shimmy

[nothreat]

I just bought a refurb HP desktop with XP home on it. I put a 17" GEM GM-170B panel on it. The screen on the LCD shimmys. I have played with refresh rate and resolution, and I can improve it, but it still shakes. I booted into safe mode and removed the adapter and made the machine re-install it and no difference. This LCD works on another PC with XP home and the new one works fine with a CRT. I have tried putting the LCD on another power circuit and moving it around with no success. Anyone dealt with this before?

 

[ndemge]

Re: LCD Monitor shimmy

One senerio you left out of the troubleshooting,<br />Leave the flat screen where it is and move another computer to it, instead of moving it to another computer to test.<br /><br />Electric motors play havic with monitors, is there a fan near by? Florescent light fixture?

 

[nothreat]

Re: LCD Monitor shimmy

You are right, I didn't try that. There are no motors or fans nearby, but I will give it a shot tonight. Thanks

 

[KRS]

Re: LCD Monitor shimmy

speakers, PC on desktop or under it, 240v service panel on exterior of home by bad spot, etc...

 

[TwoBallScrewBall]

Re: LCD Monitor shimmy

1. Try another monitor on the refurb HP and see if it shakes. If so it's the adapter on the machine that's bad. <br /><br />2. Try what NoelMG said.

 

[nothreat]

Re: LCD Monitor shimmy

Update - I fixed it. It was the video cable. I put another one on on a lark and voila! no more shimmy. I tried the bad cable on another monitor and it was okay. Must have been some interaction between the LCD and that cable. Anyway, thanks for the ideas.