Anyone else have the game come up in a small windowed portion of the monitor? I know I can set my display down from 1920 to as low as 640 if I have to, but I hope there's a way to expand the game. :) Anyone else encounter that?

In the game folder there should be a file called dosboxWC3.conf. Open that file using notepad and scroll down a bit you should see something that looks like this

fullscreen=false
fulldouble=false
fullresolution=original
windowresolution=original
output=ddraw
autolock=true
sensitivity=100
waitonerror=true
priority=higher,normal
mapperfile=mapper.txt
usescancodes=true

If you want it to run in fullscreen change from fullscreen=false to fullscreen=true
If you still want it to run in a window just make it bigger then on windowresolution=original change "original" to whatever you want the resolution to be (like 1024x768 etc)

An easier way, as I found out last night would be to click inside the window and press ALT and ENTER.