For a year now I've been using Qualia's LAN Messenger (lanmsngr.sourceforge.net) for communication between my home computers. It's really handy and it gets a lot of use. A family member got a Surface Pro 3 a few weeks ago, however, and LAN Messenger's graphics seems to be having issues with the high resolution of the Surface (the incoming text is tiny even though it's set to the highest option, and the contact list is collapsed on itself). Support for LAN Messenger is really hard to find, so I'm looking for a new option.
I tried BeeBEEP which I like but it's a little more complicated (some of the people here are not tech-savvy) and it also does not pop up to the foreground when a new message comes in. I contacted the developer and he said that he's working on that feature.
I looked at Squiggle and it had issues with my IP address and was too much trouble for what it was worth.
I really just want a simple LAN messenger that is solely p2p - no server or messaging account required. Does anybody know of anything that fits that description?