This error may occur in the Quartus® II software versions 5.1 and 6.0 on a Solaris or Linux platform, when you use the programmer to perform any operation on a flash memory connected to a MAX® II device, with a Parallel Flash Loader configuration scheme. The Quartus II software generates this error when you choose Program, Verify, Blank Check or Erase for a Programmer Object File (.POF) attached to a Parallel Flash Loader .POF.
This problem has been fixed beginning with the Quartus II software version 6.0 SP1.
The workaround in versions 5.1 and 6.0 is to use a Windows-based PC to configure devices used in a Parallel Flash Loader configuration scheme.