first of all Dosbox is fantastic. Red Baron, Microprose' Taskforce 1942 & Rowans' Overlord work a treat (cant test anymore as my main collection is elswhere - will have to wait until I can get back to 'em)

Aces of the deep results in a error -

"cannot enable the a20 line, xms memory manager required"

This happens after the intro (intro\intro.exe) plays and the game tries to load the main menu shell (shell\PS.exe) . The actual game runs fine (sim\subsim.exe) but you cant choos a campaign or missions without the main menu.

XMS is set to true (as a friend once described me - I might be insane but I'm not stupid!)

Hopefully someone can help with this.