Hi tezka,
From your message it seems you are experiencing other problems in addition to your Day 26 example. Can you kindly write to us at support[at]brillkids[dot]com with more details on those?
I checked our Support Helpdesk messages and found that your last support request (ticket #8600) was also about Little Math problems after the update. You may simply reply to the message we sent in response to ticket #8600. If you didn't receive our reply (we sent it last Feb. 22nd), you may need to check your spam mail in case our message got filtered there instead.
Also, please attach a diagnostic report when you email us so we can troubleshoot further. For instructions on how to create a diagnostic report, see:
http://support.brillkids.com/entries/20438423-How-to-Create-a-Diagnostic-Report-for-your-BrillKids-Learning-SystemWe look forward to hearing from you!