Now, here are two versions of NEMAC IV: NEMAC_4 and NEMAC_4_old The difference between this two versions is, that NEMAC_4_old is the old demo version. NEMAC_4 is the prototype of the new version with certain optimizations, including special 68060 routines. The new version just came out of my compiler (if you touch it, you might feel that it's still warm :-) ), and I just haven't enough time to test it. So it is possible that it still contains bugs. If this appears or it doesn't correctly run on your machine, you should have a look at NEMAC_4_old. Nevertheless, I keep on testing NEMAC_4 (the V1.1 new version) 'till it runs as it should. I put that on here that you can have a look at the new version (especially if you have an '060 CPU ... Oliver Groth - ZenTek Team