A quick update to address the more serious bugs. Get it at http://home.c2i.net/llin/NamSg155.zip
Fixed the player select bug
Fixed the preference bug
Program now loads the songlist at the start of the program and not at the start of every game. Doh ! 
Included singleplayer / multiplayer select at startup.
For now it's not possible to map special keys like "shift" and "enter". Maybe in a later version.
I can't find any problems with the players score not resetting. Anyone else experiencing this ?
I can't duplicate the multiple artist answers either. Are they spelled excactly the same ?
Outstanding updates / response time!
All of my previously reported bugs appear to be fixed... including the score reset between games, which you said you couldn't reproduce.
Suggestions I'd Still Love to See:1. Number of players should be selectable at start-up (1 through 4, not just single or multi). Often have just 2 or three players.
2. After each song round completes, put up a window that shows the artist / album info (maybe even the cover art, if available) for a few seconds before the next round
3. Don't allow the SW to pick a song that is SHORTER in duration than the required countdown
- I've experienced this since you implemented start at random location. - also, if you start from a random spot, don't start too close to the end
- I've also experienced this since you put in start at random location4. When a player buzzes in and guesses incorrectly, remove their wrong guess from the choice list for remaining players.
5. Allow mapping of DIFFERENT 1-5 buttons per player. This feature will make it more playable standing around a 2 / 4 person MAME CP.
Thanks for all the work on this!