Thanks for your help on this, i finally managed to get addons working which meant i could join our clans server but i must point out that steam have yet again really screwed things up!!! you guys (STEAM) are selling products that are not fully compatible with your operating platform, yes you have the base running but people want to enhance their experience by using mods and you guys should have really prepared for this. Please comunicate with Bohemia to try and resolve your outstanding bugs with this sim. I mean cmon guys with the amount of money you are charging for titles surely you can afford to get a team on board to help on these type of issues??? I would REALLY be interetsed in receiving an honest answer from steam about this and why claim to support a product when in actual fact you guys don't!!