Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!zephyr.ens.tek.com!orca.wv.tek.com!frip!andrew
From: andrew@frip.WV.TEK.COM (Andrew Klossner)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: slow-moving "wave" on Seiko 1440 in 800x600 mode
Message-ID: <11075@orca.wv.tek.com>
Date: 18 Jun 91 20:57:31 GMT
References: <1991Jun9.035241.135308@ramona.Cary.NC.US>
Sender: nobody@orca.wv.tek.com
Reply-To: andrew@frip.wv.tek.com
Organization: Tektronix, Wilsonville, Oregon
Lines: 15

[]

	"When in 800x600 graphics mode, there is a slow-moving line
	which "moves" from the bottom to the top of the screen image."

This can be caused by electromagnetic interference from other devices.
Try truning off everything else in the vicinity, or move the computer
to a pristine site (like the middle of a large field, using a long
extension cord).

I once tracked this effect to an old electric blanket located
downstairs from the monitor.

  -=- Andrew Klossner  (andrew@frip.wv.tek.com)
                       (uunet!tektronix!frip.WV.TEK!andrew)