We have a slight problem with AutoCAD network licencing. One of the computers with AutoCAD installed has taken out a licence but for some reason refuses to return it (we have checked and it hasnt been borrowed either). We believe that the computer was abnormally disconnected from our WAN (we didnt even know that the computer was removed from our main building in the first place, but thats another story :)) - the WAN connection is wireless based and connections into our corporate network are via Citrix. Is there any way to release the licence easily?