On 22 April 2008 I bought the full license for PocketStackz and have been using this wonderful flashcard program almost every day now on my PDA. Yesterday I had to perform a soft reset on my PDA, which happens quite often, always without any problems. After the soft reset yesterday the Stackz Programm on my PDA suddenly asks again for the license key, warning me that I am using a limited version and that the trial period has run out. I am also no longer able to save changes to my vocabularay lists. This is very annoying!!!! The synchronization between laptop and PDA is of no help! What happened here?? I need help quickly since I have a Japanese examination coming up soon and I am using PocketStackz on the PDA daily for my preparations!