That would be a set of tools to view the memory dumps, but won't be of that much use to you if you don't know what you're looking at.
To upload the minidump files, go to the C:\Windows\minidump folder, zip up the files there (if there are a lot, the most recent three or so would be a good start) and then attach them to a reply post in this thread.
Someone will hopefully then be able to look them over and possibly give you some input on what may be causing the problem. -- Brain: Pinky, are you pondering what I'm pondering? Pinky: I think so, Brain, but "Snowball for Windows"?