lifeisdream, thanks. I was able to make this happen for me too. I'll get this fixed for you.
Repeated run-time errors

Do any of you experiencing the ajax error use drupal search as a firefox addon?
I do not use that addon and still get (got) the error (just cancelled my premium).
I am sorry to hear that, more so as we now know whats causing it and should have it fixed soon.
I do not use drupal search. It happens the same for me on Macs and PC's using Safari, Firefox, Chrome... still happening today. Also, I tried using the "Windows 98" looking button and it did not help. Thanks for trying though, I appreciate all the help.

Im also getting the AJAX error. After I make a move on the chess mentor I get the pop up. I've tried using Mozilla Firefox and Google Chrome, but I get the same problem. I'm using 64-bit Windows 7 OS. I tried to use it yesterday and gave up and then tried again today, but I can't get past the first one. Ill move the piece and then the error occurs. I kept trying to retry, but I get the error everytime. I've disabled the pop-up blocker for chess.com and I still get error.

I'm experiencing this same Ajax error issue (which seemed to occur over 3 yrs ago in the beginning of this thread:
An error occurred during AJAX Response parsing.
The error response will appear in a new popup.
---this occurs when I try to finish my last correct move in one of the mentor lessons, thus I can't complete any lesson nor track my progress. I'm assuming like previous users, this problem may occur in other areas of the website.
I just purchased a diamond membership 15 min. ago and hope this is something you can resolve promptly. I tried downloading google chrome instead of my usual safari browser, the issue occurs in both browsers.
Please help,
steviemac12
I am having the same problem on my mac, on Safari, Firefox, and Chrome. Whenever I give a correct answer to a chess mentor puzzle, I get an AJAX runtime error. Please help!

I am awsome already. I took the first lesson and on my first try checkmated black, froze chess mentor and now I can't play lesson 1 or any others. Tried a couple browsers. Chess mentor is why I'm here. I don't know wheter to buy the program or the subscription but sure doesn't look like a subscription is the answer at this point.
itraced it a little further. I got a server side error, 500 I believe. I have some javascript debugging on firefox. I'll see if I can get closer.

Cache-Control | no-cache |
Connection | keep-alive |
Content-Type | text/plain; charset=utf-8 |
Date | Fri, 01 Jun 2012 04:12:09 GMT |
Server | nginx/0.8.55 |
Transfer-Encoding | chunked |
Accept | text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 |
||||||
Accept-Encoding | gzip, deflate |
||||||
Accept-Language | en-us,en;q=0.5 |
||||||
Connection | keep-alive |
||||||
Cookie | bcookie=c653fe92de428c814d1a; tcookie=1a9e14ec1e20941847eb%26false%26b121529%3D1%26b119088%3D1%26ac15 %3D1%26ac12%3D1%26b43876%3D1%26b121531%3D1%26ac18%3D1%26ac3%3D1%26ic17%3D1%26ac1%3D1%26ac7%3D1%26b119086 %3D1%26ic19%3D1%26ic18%3D1%26ic22%3D1%26ic23%3D1%26b119085%3D1%26b119083%3D1%26ic12%3D1%26ic11%3D1%26ic10 %3D1%26ac16%3D1%26ac14%3D1%26ac2%3D1%26ac19%3D1%26ic2%3D1%26ic5%3D1%26AC%3D5%26AE%3D1%26AF%3D5%26AH%3D5 %26AJ%3D5%26ac100%3D1%26ac102%3D1%26ic15%3D1%26ic14%3D1%26ic24%3D1%26ac10%3D1%26pc3%3D1%26pc1%3D1%26AP %3D1%26pts_bk%3D1338515331373; network-session=%7B%22network%22%3A%22chess%22%2C%22pvs%22%3A6%2C%22direct %22%3Afalse%7D |
||||||
DNT | 1 |
||||||
Host | 467.cim.meebo.com |
||||||
If-Modified-Since | Wed Dec 31 1969 19:00:00 GMT-0500 (Eastern Daylight Time) |
||||||
Referer | http://467.cim.meebo.com/cim/postMessageReceiver_v102_cim_11_27_1.html?n=chess |
||||||
User-Agent |
|

I've the same problem... in Tactis Trainer after the move : "An error occurred durin AJAX Response parsing. The error response will appear in a new popup" , please help me ! :-)

No... the same problem.. and this is what appear in the new window : "
{"controls":[{"id":"labelmovebox","data":"
I just upgrade my membership to Diamond and in Tactics Traniner and Chess Mentor. I am getting the error message
Then if I select Ok. I am getting
{"controls":[{"id":"labelmovebox","data":"
Do any of you experiencing the ajax error use drupal search as a firefox addon?
I do not use that addon and still get (got) the error (just cancelled my premium).