Didn't work.
I tried also going to the file in Explorer and right clicking and selecting Open and it tries to open in IE but says it can't find the file!!
So I tried renaming the file and that didn't help. I took the dash out of the title thinking it might mess things up, but that wasn't the answer.
Very strange that it can't find the file when it is pointed right to it.
I went into the properties and changed them all so all the users had total permission to do anything with the file, but that didn't fix it either.