Quote - Ok, I bought it. Still downloading the content...

Anyone else here has the problem that MAT-poses with the ending .PZ2 won't work until you change the extension to lowercase .pz2 and refresh the folder?

Yes, this is the case anyway on my Mac, even with Poser 7 and Pro. I don't know about PCs.

But... you surely don't mean to say they've included content with upper case file extensions?
Words fail me.....

"If I were a shadow, I know I wouldn't like to be half of what I should be."
Mr Otsuka, the old black tomcat in Kafka on the Shore (Haruki Murakami)