Hello Xaver. I have a Dell Dimension 8300 Intel ®, Pentium ® 4 CPU 2 80GHz. 2.79GHz 150GB of RAM. Thank you for replying, I think that, as I have only had this software for less than 2 weeks, that I should hold fire a bit and take my time in learning the basics before launching into something straight away. I have arranged for a friend who has been using PTE for some time, to come and look at my project and hopefully iron out the problem. thanks and regards Steph