Using Nero Vision 22.214.171.124 to make a DVD of two AVI files. Everything goes fine (create chapters, trial etc) and then commence burn to hard drive where it starts transcoding but after about 30mins it just stops and disappears from the task bar. No error logs or anything!! Also tried just burning one of the AVI files but Vision does the same thing and disappears after 30mins. There is plenty of hard drive space + all the latest firmware installed etc. I have just burnt 3 similar projects (2 AVI files to DVD) with no problems. Any ideas?