I would really appreciate some legal advise regarding software if anyone could help? I updated my OS to Mavericks last night since it was free. But only today I have now found out that some software I use, which is reasonably expensive for what it is, is not supported in Mavericks and no longer works. The company involved say my only option is to get the latest version. This would cost around $110. The original software was only 2 years old and is now useless since i upgraded to OSX without knowing. I don't think its fair practice. Any thoughts? Thank you.