I also hate the way it handles cropping. It seems to do a resize to you keep the original dimensions after crop? Does not compute. I want to keep my 1:1 pixels thank you.
I had this problem start happening recently (and I've been using PSE v4 for a couple of years without any trouble) and the answer I found was to make sure that the "Resolution" box on the crop toolbar is blank before cropping.
That's the one thing I hate about PSE: it seems to occasionally & arbitrarily change preference settings
I love the programme, but watch out for things like that!
PE7 will be out in October
see the Adobe Upgrade policy here
"Customers who purchase an Adobe branded or Macromedia branded product during a limited time after Adobe announces a new product version are eligible for a free upgrade to the current version."
I've read that the "limited time" is 30 days but, on a quick look, couldn't confirm that on the Adobe site.