Hello I have developed an application which uses the USB port amongst other things. Currently to run this application I need to run terminal, login as 'su' and then the application otherwise it gives me a permission denied error. If I try to directly try to run the programme from the desktop gui by clicking on the icon of the application, it gives me permission denied error. How do I get this application to work from the DESKTOP Gui without running it from terminal prompt and having to login as 'su' Is there someway I can log into the GUI as 'su' How do I create users and set access privilages. Thanks for you help in advance. Karbhari