I think you're spot on here Robert. I found the PDFL47.dll in the P6 root directory_ I transferred it plus all my plugins in to the new PS CS plugins folder and it got rid of all the error messages. Can't get old KPT2 to work! (but then I don't think its worked for a long time!) I'll just have to go and redirect Painter now! Its a shame about the thumbnails_ it looks such a mess when browsing_ but I think I'll live with it rather than mess with the gubbins under the bonnet!! Thanks for the reply. Nigel