Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!agate!shelby!labrea!cdp!sklein
From: sklein@cdp.UUCP
Newsgroups: comp.sys.mac
Subject: Re: What's that thing in the upper LEFT
Message-ID: <141200074@cdp>
Date: 3 Sep 89 12:51:59 GMT
References: <3827@ncsuvx.ncsu.edu>
Lines: 7
Nf-ID: #R:ncsuvx.ncsu.edu:3827:cdp:141200074:000:294
Nf-From: cdp.UUCP!sklein    Sep  2 14:51:00 1989


>a single pixel will flicker (blick) quickly every few seconds,

That sounds like TOPS.  TOPS will flash the most upper-left pixel on the
screen as an 'in-use' indicator.  If you are accessing files accross the
network (or someone else is accessing your files) this pixel will flash.
 -shabtai