Hi, I've been looking at some exercises I've done in VBS 2008 and I'm getting the following error when pressing "F5" to start the programs (this does not happen when pressing "control F5" to start without debugging: Error while trying to run project: Could not load file or assembly 'HelloUser\, MessageBox displays name' or one of its dependencies. The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047) OK I'm not aware of doing anything wrong here, but anythings possible I guess, any ideas? Cheers Steve. Visit my site for everything from gifts, ringtones, screensavers, automatically updating RSS news stories and quiz's to conspiracy theories, music, videos,the charts from 1956-2008 and amazing facts + so much more! Contact me: Skype: steve-chase MSN: stevesax68@xxxxxxxxxxx E-Mail: steve@xxxxxxxxxxxxxxx Mobile: 077333 73714