Drive alignment

I have a TRS80 Model 12 that's been upgraded to a 16B (with two 8" slim-line floppies). I am trying to copy some discs but not having much joy. One theroy is the media is cactus. The other theory is that following some reading about these machines, because of the size of the drives they tended to get out of alignment regularly. How do I check alignment on the old classics. TIA!!! +++++++++++++++++++ Kevin Parker Web Services Manager WorkCover Corporation p: 08 8233 2548 e: webmaster(a)workcover.com w: www.workcover.com +++++++++++++++++++ ************************************************************************ This e-mail is intended for the use of the addressee only. It may contain information that is protected by legislated confidentiality and/or is legally privileged. If you are not the intended recipient you are prohibited from disseminating, distributing or copying this e-mail. Any opinion expressed in this e-mail may not necessarily be that of the WorkCover Corporation of South Australia. Although precautions have been taken, the sender cannot warrant that this e-mail or any files transmitted with it are free of viruses or any other defect. If you have received this e-mail in error, please notify the sender immediately by return e-mail and destroy the original e-mail and any copies. ************************************************************************