just selecting the "use current resolution" option doesn't seem to work.
Do you mean the "same as desktop" option? Because there is no "use current" option. The other option would be "res. in game", which does something different.
FYI, most users find that even with the bigger HUD fonts enabled, 19200x1200 does not offer a legible HUD. As Drik suggests, 1680x1050 might be more suitable anyway.