Urgent help!

Hello, wow havn’t been on kirupa for ages.

Anyhoo, My comuter (not this one otherwise I would not be able to post) is seriously baggered. :*(
When I start up the DOS screen shows the following message:

Drive not ready
Insert BOOT diskette in A:
Press any key when ready

I have tryed inserting the BOOT diskette but when I do the BOOT settings come up on the screen and none of the options seem to solve the problem.

Also I have tryed turning it on and off and pressing esc. :gi:

PLEASE help, Matt xx :-/