Are you still seeing this now ? If so, can you please take a screenshot of it and mail it to support?
If you're not sure how to do this, this link will show you a step by step guide how to do this
http://hosting.intermedia.net/support/kb/default.asp?id=816
Today, while conscientiously attempting my 25 daily puzzles, I twice had this happening.
After the my 1st move, it displays "CORRECT MOVE", then a few seconds later a window pops up:
An error occured in database results parsing
When I click OK, A new window opens up, all white with some writing about a database error.
I have to exit and re-enter TT to continue, as the window is now unresponsive, and I seem to lose rating points for my correct answers.
Never happened before, only today.
I'm using windows XP, and Firefox. Just yesterday Firefox downloaded and installed an upgrade, could that be an issue?