commodore 64/128 question

Jay, I don't see any record of your original post of this question in the cctalk digest, so I'm switching over to the cctech list. The only post on this subject is Ray's reply today. In reply to your question, I worked on the software for the Quantum Link online service including fast loader disk routines. We gave the C64 a pretty good work out, and the software ran just fine on the C128/1571. The only machine we had problems with was the SX64 where the fast loader would hang shortly after starting a disk load. They hadn't terminated the serial bus correctly which caused some ringing in the lines. But by pressing your finger against the serial bus port connector or by connecting a serial bus cable to the serial port the load would continue and finish. Remember that many pieces of C64 software back then used unimplemented opcodes in their protection schemes. I don't believe that the C128 had any problem with this software. --Doug