I'm encountering again and again with this annoying bug.

Sometimes the "Tactics Trainer" window fails to load and I receive a window like this:

The buggy window allow me to make one move, then it freezes. Anyway, even if it was one-move problem and I was correct, the problem is marked as "skipped" and I loss points.

So, my TT rating looks like this:

I'm using Google Chrome. Have no idea what happens with other browsers.

Is someone else knowing this prbolem? Is there any solution?

Do you have even just IE installed?

The OP said they were using Google Chrome (also, screenshots).

Every Windows PC has IE installed - it's integrated into Windows XP, and chances are that anyone with Vista still has it installed too.

Chrome seemed to work okay for me with most of the site, but I can't say I tried it with the tactics trainer.

I have also had similar problems with the coding showing up in the tactics trainer. I am using Safari an a MacBook.

I occasionally have that problem too using safari on my MacBook Pro. For me its not that big a deal, I just quit out and restart and its fine. I can understand why it is annoying to you seeing as your amount of problems are very limited and one of them has to be wasted b/c of this error. 

I use firefox and have never (fingers crossed) had a problem.

I've had this problem as well.

Yes that happens to me too, and it sometimes really hurts my rating.

has never happened to me on firefox. that said, we are looking into it!

I use Firefox, and already told you my problem.

happend to me too. did not know it was a bug

Eventually, the bug only changed its form. There is currently no more gibberish, but TT hangs many times after making the first move.

Attached an example shot of a position which I've made the move but TT is still stuck in "Your Move" status.

I haven't gotten any bugs in TT for a long time now, though I have gotten that stuck on my move bug before (not recently though)

This has happened to me as well, both on Safari and Firefox, I think.

this is still happening??? argh.... we are totally unable to reproduce this error on our end. please send details!

Personally I think it has gone away (or at least it has for me). TT has been working perfectly for me lately :D

I've had this bug in Tactics Trainer before when I was using Firefox.  It was maybe a couple weeks ago.

EDIT: I'm sorry I don't have more information to give to help out.

 As you can see, it happens quite frequently (1/3 of the times, in average):

Is there any additional information that I can provide?

happened to me too. due to this bug i am down from 1800 to 780 in a few days.

The problem still exists. TT is hanging lot of times.

I think you should run some self-test script within the trainer before counter starts counting down.