If you have problems loading some programs you should test your drive speed and your drive alignment. It’s super easy to do with the Free Spirit Software 1541/1571 Drive Alignment software. Side one is the boot program and the back side of the disk is used for alignment. You can still find this software for around $10 on Ebay. Also this software will help you adjust your drive speed. I do have a video on that also.

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httpvh://www.youtube.com/watch?v=HY1dBRm1wj4