What web browser are you using when this happens? Also, try using the "Control F5" keys to do a hard refresh on the site before attempting the Tactics Trainer as this may help it to run smoother for you. And try clearing your web browser cache as this can help to solve some of the problems that you are experiencing.
Tactics Trainer
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OK Thanking Patzer: In the previous attempt the program stalled and did't make its first move. Tried the next puzzle program moved but I couldn't move the piece to reply> I will look into browser and firewall information. Maybe I should erase some of the previpus results as cache may be overloaded?
Tactics Trainer puzzle #0050575: I wonder if I missed that position in a regular game. It is so familiar.
The program has been great. My hand has been much better since medical treatment and exercise.
Program keeps stalling: sometimes I can't get the piece to move (I am not in chess etc) The "its your move prompt" is in blue. Also when Program works the moved piece stumbles or stalls as it is traveling like it's wanting to stop. I report error but the situtation is treated like a problem associated with the puzzle, not the technologyy.