Hi Lin, Yachtsman, John, Wideangle and Brian, Thank you so much for your suggestions. They gave rise to an explosion of ideas. Firstly, I transferred the PTE file from Pete’s computer to mine using Backup via Zip as Lin suggested. Very quick and efficient. I used an external hard drive to transfer the data, but in future will consider a memory stick or SD card. Excellent suggestions thank you. Yachtsman, I have not tried the USB transfer lead yet but will investigate that as well. John, I am thinking of using the external hard drive as the location of the most up to date version of the PTE file so that Pete and I don’t get confused about which version is the most current. We could then work on them serially but without having to transfer the most recent PTE file from computer to computer. The positive implications of backing up via zip, if I understand it correctly, is that we don’t have to get all our pictures and music into the correct file to start with. We can draw pictures from anywhere (including external drives) and then at the end of the process backup via zip and save the PTE file from the unzipped folder, resolving file location issues in one go. Is there any reason why I shouldn’t do it like that? We tend to get into a bit of a pickle with our picture locations as I am usually still editing pictures on my computer while Pete is working on different versions of the same pictures on his computer in PTE. Pete and I sometimes go to remote fishing lodges where access to generator power is limited to a couple of hours a day, usually at times when we are out birding or fishing. Our laptop has limited available storage space so we use an external hard drive that unfortunately requires power. Consequently I have not been able to work on my pictures using computer battery power as I haven’t had access to the data on the external. The SD card and memory stick options will hopefully provided a solution to this in the future. Thanks Wideangle and Brian for the suggestion. Yachtsman and Brian raised the point of PTE on two computers. We have a desktop and a laptop which we both use. For Pete’s convenience I loaded PTE onto both computers, but now realise that I am in breach of the licence agreement. When I first purchased PTE, I was responsible for the photography and photo editing, while Pete did the creative bit with the pictures in PTE, music etc. That is mostly how it works, but as time has gone by, and I have learned how to use PTE, I do some final editing of the PTE show once Pete has finished with it. This means that both of us are using PTE on two computers, albeit my input is marginal. Once I have purchased another copy of PTE, how do I change the key on one of the computers as the same key is lodged in the registry (?) of both computers? Lin, thank you for your wonderful manual. It is very user friendly and most helpful. When looking for the solution on how to transfer a PTE file between computers, I did find your para on Creating Backup in Zip, but didn’t realise how to translate that into showing PTE where to find the newly ring fenced data so that I could, firstly, transfer the data to another computer, and secondly, remove all extraneous photos from my computer without corrupting the integrity of the PTE show. Would it be worth explaining further for newies like me, or is that beyond the scope of the guide? I asked around a lot before coming to the forum, and you would be amazed at the convoluted answers I received from old hands at the software. Thank you all for this amazing forum Sincerely Linda