My report:
-It runs very very smoothly with a high frame rate, however, there is lag on top of it all.
Super Lag
-The Playerlist is very buggy. Sometimes if I click one person, another person pops up.
-All the font is the same :/
-I noticed in UN that the pixels of the tiles are flickering in places.
-There are several places where the font is all sprawled on top of each other.
-Glitch: Lots of times when I chat, it pops up saying "non existent sword image"
-Setbody and setbody colors don't seem to be functioning well; I must say it several times before it pops up.
-GMaps are lagging badly... Or at least for me.
-In a NPC:
this.chat = "words"; no longer displays infinitely. It disappears after 3 seconds!
-My sound is working! It doesn't work on v5 and I couldn't do anything about it!
By the way, I'm running Windows 7 with a very new computer.
~I'll edit this and add more as I find more~