Thanks Keith, I am running as an Administrator, and it is on my desktop, which is running on a fast processor with tons of ram. We went through everything possible with the support team, who simply ran out of solutions in the end. Every possible scenario wad attempted - turning off literally every other application etc. It is a brand new desktop, so at the time had no other software installed with the exception of Office and antivirus, so these were ruled out as causing thr conflict. They just asked me to send back the software, as they had no other solutions. I just wondered how many others have experienced anything similar?