I've downladed the CS6 trial but when I try to install it, I get an error message saying there's already a version installed on my computer. I tried downloading it a couple of weeks ago and got an error message that the download failed. Apparently something was downloaded because it's showing up in my programs list. When I try to delete it from that list, I get an error message saying the the uninstall failed. So I'm stuck.
What do I do now?