Now when I try opening that machine, all I get is a tiny sliver of the border shadow - not enough to actually double-click and restore the machine to full-size.

I'm at the highest possible resolution already, otherwise I'm pretty sure I could just bump up my resolution and it'd appear.
I tried cloning the machine, but the clone opens in the same location.
Is there any way to get this machine back to where I can actually click on it?