Today however, finally in 2014, (that is at least 4 years living with this problem) I found the free solution, thanks to people before me. I must spread the word.
As found on this website http://www.dpreview.com/forums/post/51161114
I have taken the liberty of showing the post below, as chasing this problem has left many dead links to year old pages (indeed this fix was found last year, sad it didn't reach me sooner) and It would be sad for future folks to find the link dead.
I haven't tried mystic thumbs as it costs money, but Sage Thumbs with the settings modified works 100% so far, I'm using windows 8.1 x64 photoshop cc 2014.