Sorry Jolly, I was only replying to devinhfox. You are doing a absolutely fantastic job, don't get me wrong. I only wish I were able to help you more, but alas my knowledge of machine code and assembly language ends with the amiga 500 There are a lot of imaginations running wild around here now that you are gaining ground, and very little useful information coming to the fore. So in the interests of 'keeping it real' I just thought I'd chime in with something that might be relevant even at this early stage. Great work again mate! If there's any way I can help, sasve flashing my cam at this stage (I'm a poor musician), let me know!