Hi Mrs. Lop,
I always impressed by what you are able to do despite your personal challenges. It certainly gives us pause when we think of complaining about mundane problems.
While you are awaiting the arrival of the zip drive, have you rebuilt your desktop? That may help with the 'application not found' messages.
Here's how to do it:
Rebuild your desktop file by restarting your computer while holding down the Option and Command keys.
Note: A dialog box will inform you that rebuilding your desktop will take a few minutes. You are no longer required to hold down the two keys.
Click OK.
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If that doesn't help...
Could it be that you are using an old alias to open some of the programs? Try holding down the Control key while you click and hold on the icon you use to open iCab. A window should pop up and one of the choices will be "Show Original". If it is a reliable alias a window will open and show the application highlighted. I'm not absolutely sure that system 8x had this capability as I really can't remember. You could also just click once to highlight the icon and then go to File and under that should be the choice to "show original".
BTW, I have a lot of old zip disks that you are welcome to have should you need more. I had a SCSI zip drive for use with my old 6300 but it died. My 9600 and Wallstreet have built in or zip modules but I've gone on to USB and FW drives so the zips are no longer used.
Edit: I just reread this thread and see you do know how to rebuild the desktop. Oh, well.
But another thought occurred to me that you might want to give iCab extra memory. Do you know how to do that?
Steps to increase memory allocation:
1. Select application by highlighting, but be sure application is not running.
2. Go to File, Get Info
3. Scroll to the bottom of the window, to the "Size" and "Min size" boxes.
4. Increase the memory allocated for Min or Preferred to twice what it is now.
If you already know how to do this, forgive me...