 Thanks for your replies guys,  appreciate it :)<br><br>I&#39;ve got this working now, thanks to some info provided by LOst and some hours of head scratching&#33;  I needed to update the time-over routine, the time bonus routine and also the initialisation routine - all done in hex, with a little extra programming in to boot&#33;<br><br>Anybody who wants to know exactly how I achieved this, please ask.<br><br>xeno. 