Sorry for not replying, due to life, and my frustration at the software not working, I've been unwilling to attempt to fix it. However, I was just poking about trying a few things and have seemed to found a potential solution. I forgot to mention in the original post, but I use the steam version. I found, thanks to directly e-mailing support, that if I downloaded a non-steam version that version would work fine. However, I would prefer to have the steam version work. I got around the problem like so; firstly, I right clicked on 3D coat in my software library, then I went to properties. Once there, I clicked on the local files tab and went to browse local files. Once I was in that folder, I navigated to the bottom where all version of 3D-coat are located. I selected one, opened it up, and once it was running testing using "Open", followed by creating a new file and various other things which would previously crash the software. They all worked. I strongly believe it has something to do with the file navigation and it's connection to steam, but I'm un-sure. It should be noted that using this technique steam doesn't tell me I'm using the software, were as the usual process of opening alerted my friends and so forth. I suppose this could back this theory up. Thanks for all your help, if anyone can supply more information I would be grateful. I am just about to report my findings through an e-mail to support now.