Error loading .tsk file after upgrading?

I upgraded to a new version and now I cannot load my Task Coach file. It says: "Error loading .tsk. Are you sure it is a Task Coach file?". I'm sure the file's ok. What next?

Remove your TaskCoach.ini file and try again. Sometimes errors in loading old settings files will cause Task Coach to barf on .tsk files that are just fine. The TaskCoach.ini file is located in C:\Documents and Settings\<yourname>\Application Data\TaskCoach if you're on Windows and in /home/<yourname>/.TaskCoach if you're on Linux.