9.If your computer came with a hard disk drive that you are no longer using, be sure the cable leading from that drive to the main system board and the hard disk drive power cable are disconnected.

Software Problems

If you are having trouble with an application program, try the following solutions:

1.If the application program does not start, check that you are following the correct procedure for starting the program, and that it is installed correctly. If you have a hard disk and the program is stored in a directory on that drive, make sure you are logged onto or specifying the correct directory. If you don’t have a hard disk, make sure you have inserted the application program diskette in the top drive (usually

drive A).

2.Your computer can run at either high speed (25 MHz) or low speed (simulated 8 MHz). While almost all programs work properly at the faster speed, some must run at the slower speed. Check your software manual to see if this is the case, and change the processor speed if necessary. See “Changing the Processor Speed” in Chapter 4 for instructions and for information on accommodating copy- protected programs.

D-22 Troubleshooting