Hi folks Does anyone else have a problem with the parallel dongle not being recognised under Win XP sp2? Solidworks came up as being blocked, so I unblocked that and it now pops up a window with "A problem was encountered accessing the proper security device. The device may be missing or have invalid information. The application will be terminated immediately". I'm assuming that I need to unblock whatever programme looks for the security dongle or something similar - any help gratefully received. Win XP sp2, Solidworks 2004 SP1 Thanks Deri