>> It seems to be easier to press buttons and ask questions than do it. > >actually it is much easier and cheaper, I am just a student, crystals are >expensive here and I thought I'd ask if it's possible (maybe somebody did >it before) before spending US$80 on a crystal. Besides - who sells crystals at $80 when a normal 24Mhz to 30Mhz is around $5 to $8 each ???? Rgds Mike Some say there is no magic but, all things begin with thought then it becomes academic, then some poor slob works out a practical way to implement all that theory, this is called Engineering - for most people another form of magic. Massen