When installing the accelerator in order to test it out, I got stuck on the Credentials screen when clicking Next didn't do anything and there was no sign of any error. To verify that the installer was working I copied the file to another computer and could click past the Credentials screen. Looking through the settings and comparing I noticed I had a trailing backslash in the storage path on the computer that couldn't proceed. Removing it allowed me to proceed, and adding one on the second computer blocked it there as well. Interestingly enough the installation path doesn't seem to care about a trailing backslash.