> for the last couple of days my mac powerbook 165c with 8mb ram 120mb HD
> 14.4 modem has been acting strange... strange crashes all of the sudden,
> memory shortage errors (that were never present before), etc.
> but, one problem im noticing (if it is a problem ) is that fact that
> sometimes when i have, for example, eudora or gopher open, the little icon
> shows in the upper right hand of the screen, RIGHT? but occassionally the
> little gopher or letter icon will start alternating by flashing the finder
> icon back and forth...
> what does this mean??
(I'm emailing this and posting it also.)
As others have said, what you're seeing is a "notification";
basically, when a background application (an application other than the
one you're currently working with) wants to put up a dialog or otherwise
let you know something, it posts a notification about it. This causes
three things to happen:
*The system beep sounds.
*The notifying application's icon flashes up in the upper-right
corner of the screen.
*When you pull down the application menu (the icon in the upper-right
corner of the screen is actually the "title" of this menu, so you press
the mouse button down on the icon to pull this menu down), the notifying
application's name will have a diamond next to it in the menu.
When you bring the notifying application forward (by picking it from
the application menu, or just clicking on one of its windows), it tells
you what it wanted to tell you, and the notification goes away.
Anyway, since you say the Mac is having memory shortage errors as
well, my guess would be that the Finder wants to give you one of its
"There is not enough memory to keep the window 'Foldername' open."
messages. When memory is critically short, the Finder sometimes starts
closing some of its windows to try to free up a little more memory; when
this happens while the Finder is in the background, you get the
Choose "About This Macintosh..." from the Finder's Apple menu (the
one on the far left), and see how much total memory it says is in your
machine. If it says less than 8MB, you may have a hardware problem, and
you should talk to your dealer about it. If "System Software" is taking
up a big portion of the available memory (more than about 2500K), it may
mean that you have too many neat things installed in your System Folder
:-) , or that your disk cache is set to be too large; go to the Memory
control panel to check your disk cache, and consider reducing it to free
up more memory. (Unless you're using System 7.5, a disk cache larger than
128K is generally counterproductive anyway.) Finally, consider turning
virtual memory on; this will give your applications more memory space to
use, at the expense of disk space and a little speed (and reduced battery
life, if you're using the PowerBook on the road).