Yes, I have V6I installed now which is also an upgrade from 5Inf so at the moment I have 3 versions of Vue on my system, 2 of which I really should bin!

I think it's ok to uninstall them while your 'puter is running ok, but God help you if you get a crash, because you have to re-install each in turn, I have asked their tech support about this and haven't had a satisfactory reponse yet!

I've been unfortunate to have 2 HD crashes this year, one was a knackered drive and the other was wrecked by my Son bringing a worm onto it even though my AV saw it, he still let it in somehow, he's banned off it now [lol].

Injustice will be avenged.
Cofiwch Dryweryn.