I've been here for a few years and it's always worked perfectly for me except for the rare times they're doing maintenance or a server is down. Then I too got that Ajax thing. Sorry your experience was different. There are about 25 free courses that all members can take. Why not see what happens when you try those?
http://www.chess.com/blog/webmaster/free-chess-mentor-courses
Hi,
about two years ago I bought a Platinum or Diamond membership (don't remember) because I was interested in chess mentor. Unfortunately it never worked for me, I always got some strange "AJAX error". This was also reported by other people.
As I did not renew my membership (why should I? The service I paid for was never delivered!), I can no longer write posts in the original thread; even editing my post is blocked (really clever!):
http://www.chess.com/forum/view/premium_members/parsing-error---help-please
But there was no answer confirming that the problem was finally solved. So can somebody confirm that this service meanwhile really works? I really would be interested in it, but I certainly refuse to pay for something broken *a*second*time*. The fact that there was no final posting from staff that the problem was fixed leaves a bad taste...