1.1.7 is one of the many test versions which we give out to people. The dual monitor version will be the next public "speed bump" release, with a version number of probably 1.1.9.
If you need 1.1.7, I can give it to you. It fixes a couple of issues:
On some sound cards/systems, when the Aquarium starts, even with the sound turned down to zero, it prevents any other application from making sound. A "don't initialize sound card" button was added (I think it's just called 'off'
).
On some systems, the Aquarium would end up hidden with the sound running but no tile in the taskbar so you couldn't close it. This has been fixed.