Guys: Can you figure this one out? I have a Jarmac 4 inch sanding table which I bought back in 1997. At that time I bought a few packets of the sand paper discs along with it. About one year after using the machine, I noticed the discs no longer adhere too well. They buckle and starts eating into the aluminum miter plate. I tried using another disc. When I peel off the paper behind the disc, I feel there is still adhesive and it sticks to the aluminum wheel but soon comes off after just minimal use sanding. I haven't used the machine now for a couple of years and took it out just a few days ago and tried again. The same problem. I went to the hardware store near me. He told me to clean the aluminim disc with solvent to remove the glue that remains after a disc is removed. I tried this. The glue does not come off and I have the same problem. I am still trying to use the original packets of discs that I bought with the machine. Do the discs lose gripping power over time? Is this the problem, not the fact that there is some minimal dried adhesive on the aluminum disc? What should I clean the wheel with to remove the deposits of adhesive? Do I need a newer batch of sanding discs? Would that do the trick? Thanks guys.