I'd would try their support team, or a re-install however, I'm not sure who told you Perfect World is "great", In my opinion Perfect World is not that great. Not "horrible" but not great. It's got a distinctive Asian themed style if that's your thing.
LOTRO is one of the best F2P MMOs out there, especially considering it's not a "normal" F2P mmo but you only unlock more content with spending money, buying things doesn't give you any kind of advantage or anything. You also gain a bunch of "points" by playing. My younger brother has almost unlocked the entire game without spending a dime.
It is perhaps only good if you enjoy LOTR though. I LOVE the lore in LOTR, so I love LOTRO in return.