Hi Cheers Just a quick check - do you have a .BAK version of your scene just to make sure the original hasn't been corrupted? I know that scenes saved in 5.09 may not open in 5.08, but I haven't (yet) seen this vice versa. What i'd honestly do if you want to try saving your scene is to upload it to www.YouSendIt.com - e-mail the link to yourself, then paste it on a thread to E-on Tech Support. Bear in mind it's the weekend - and you usually need to give them 2 or so business days to respond, and without a specific file to test, it's probably harder to investigate. Do you have any more information about the type of scene, the error message, what it relates to etc. that we might be able to help with? Kind regards