From Stephen via Greg Solitaire Challenge by Dynamo? PC Board with ROMS was silkscreened PROMSTOR 32 DRAGONWORKS 1982 .0 27c020 stickered SSII104.00 .1 27c020 stickered SSII104.01 .2 27c020 stickered SSII104.02 .3 27c020 stickered SSII104.03 .7 DS1225AD read as 2764 .mb MX 27c512pc-15 stickered AMIBIOS AMERICAN MEGATRENDS 486DX ISA BIOS (c)1992 AA7408731 .vid Unknown chip - stamped Trident VER.D4.01E (c)'95 Tridentmicrosystems (c)'90 Phoenix Technologies ^450C4CM1BNJDH009 read as 27256 since luigi MAME found a 32KB Trident driver online. read matched online file. MAME 0.124A C:\Hardware\Dataio\roms\Other\prom\roms>c:\hardware\dataio\roms\mame\mame -romident prom.0 prom.0 NO MATCH C:\Hardware\Dataio\roms\Other\prom\roms>c:\hardware\dataio\roms\mame\mame -romident prom.1 prom.1 NO MATCH C:\Hardware\Dataio\roms\Other\prom\roms>c:\hardware\dataio\roms\mame\mame -romident prom.2 prom.2 NO MATCH C:\Hardware\Dataio\roms\Other\prom\roms>c:\hardware\dataio\roms\mame\mame -romident prom.3 prom.3 NO MATCH C:\Hardware\Dataio\roms\Other\prom\roms>c:\hardware\dataio\roms\mame\mame -romident prom.7 prom.7 NO MATCH