Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't buy this product

I spent 4 hours loading Act 2007 including manually uninstalling Act 6.0. It worked fine for a couple of days and then I lost my calendar. The items are there in a popup, but there are no displays in any view of actual day, week or month. I tired to uninstall and reinstall with the same result. So I uninstalled Act and all the MS stuff they also load, and now it won't reinstall. This is a nice product when it works, but the new version is awful. I would give it 0 stars if I could.