[CaptainMorgan]

I would wager to guess that it is in fact a permissions issue, as the error message tells you. Code looks okay... but I'm not familiar with the Chart package you're using. Maybe someone could provide more info on this... vikain, have you figured it out by now? Either way, I'd like to hear about it. If you're using Windows, then I imagine to make permission changes you need to be Administrator and/or give the current user permissions... this is more of a technical problem I think rather than a Java specific issue.. no?