excel illeagle op

Hi,
I realize this is a little generic of a question, but...
I am volunteering at a library and came across this problem.
I am not sure this question belongs here, but I wasn't sure of where it should go.
While on the one PC, if you are using Excel (quite often) and remove a zip disk, it will shut off excel (without saveing of course)
and give a illeagle opperation window, with the excel icon at the top-indicating that excel is the culprit I guess.
If I remember correctly, you get a illeagle operation when two programs are trying for the same resourse?
I know that is not much info to go on. But it happens every time,
be using excel, with a zip disk in the dr, remove the disk and excel goes off and the illeagle op window comes up.

I am hopeing someone has an idea for me to try.

 

What's the full and complete error message?

 

Not being there I will have to get back to you on the exact message. But it is the illagel operation message.
Then when you clk on details it gives you more info in binary or whatever it is.
I will post back to you as soon as I get the message .
Thanks