I got this in September 2007 (version 1.2) and now it reverted to the trial version. Back then I activated it fine and used it ever since with no problems. Now it says I have 30 solvings left.
Windows XP pro, all updates; I haven't installed/uninstalled anything important and all the giveaways I have work fine. So I'm inclined to think the license may have expired due to some fault from the developer.
Can anyone who has it check if it's still activated on their computer ?
Any suggestions ?