It may be the spyder board. I have had a BDM mismatch when I have changed the Spyder board. If you do, select cancel instead of restore. This will load the new software from the spyder board to the magic pc. Before anything else, I;d would do a load from cold with the OS/application DVD, the external DVD drive and keyboard, Restore all settings with the backup cd after the reload completes except for the generator data. Refer to the service manual for the procedure. It is available on CDL if you don't have it.