Hey there,
I was wondering myself where the Thank You thread are ? So I use yesterday Calibre for the first time and it works fine on Win7. Some issues here and there but HEY! itīs a living project and looking at the roadmap make me lucky about the enhanced PDF features and improvements
I just want to say "Thank you Calibre team" for this wonderful, free tool. And I will donate soon to show my joy
Best regards