I have changed from Quartus II 4.2 to 5.1. Now I am getting much more warnings ;-). My design works normally but the warning of the fitter I do not understand: Warning: Performance of this circuit may degrade because the Fitter Delay Information is not loaded. The Quartus Help says: CAUSE: Certain devices are only used internally by either product engineering or the timing modelling group. The Fitter Delay Information is not built for such devices to save build time. This can also happen when the user sets an INI that explicitly disable FDI loading. ACTION: If an INI is explicitly set to disable FDI loading, try removing it.
I can't find any setting for this. I'm using an APEX20KE EP20K200EFC672-3 which is not only "used internally" I think.
Please help, Manfred