Hi Kevin .. What appeared to happen is that all actions reverted to ToDo and any supplementary information such as notes, resources etc was lost.

OK, so now I've done a system restore and everything's back how it should be. Still unhappy though, which is a shame bc otherwise I really like the product!

Actually it's worst than that. It's lost the entire database including notes on each task etc etc. Now very unhappy. Should at least have been given warning if this was going to happen.