Tenaja, You mentioned recently that you had done some 'ramp software' to calculate constant accelleration delays. Was this is asm? My most recent attempt to produce the delays is by using the 'Floating Point Co-processor' from Micromega - an 18 pin chip that sells for about $20. It comes with an IDE that is very easy to use and it comes up with the correct answers for the delays. It's a dream for complex floating point stuff - but one has to access it via PBP using I2C of SERIN/OUT comms. Worth a look if you don't already know about it? If your delay software was in asm - any chance of getting a look at it - my usage is only 'hobby.' Regards Bill Legge