As I've stated, when I installed PD8, it had to go though the process of uninstalling and overwriting PD7, so there's no way I could have PD7 and PD8 sitting side-by-side on my computer. If I were to re-install PD7 now, it would uninstall PD8.
This is a shame for me, in a way as, I've been using the 9 overlay video tracks available in PD8 to make my own animated titles with each letter in a nine-letter word having its own animation effect. If In need to do titles with multiple wording, I animate several other sequences with the required words in each, then I overlay them to create the complete title. Trouble is, if I try to do that final part on PD8, the letters are blurred. But if I were using PD7 the overlay would be nice and sharp, but PD7 only has 6 overlay tracks so it's a bit restrictive for the animation effects I'm trying to create.
Cheers!
Neil