I can get the picture to stretch on MAMEW, however it does keep the aspect ratio, so for example there black bars left and right for some games.
If you want perfect MAME emulation, why are you using Windows?!
Windows has the following modes (Unless you use Geforce cards which you can do you own displays), although note Geforce can't do 15.75khz modes as the Dotclock is not stable for that low Khz.
320x200
320x240
400x300
512x384
640x400
640x480
720x480
756x480
800x600
Yes, all video cards have them modes, and yes there freq will be capped to 60hz for normal monitors. Why on earth would you expect a game 384x224 for example to fit in 640x480?! Its not going to happen without noticable picture degradition, maybe I am a perfectionist, but I think the whole point of MAME and building MAME cabs is to keep the games as close to original as possible..
I use the T64 for Windows todo the following:
Play Modeller and other Windows only emulators, to play DVDs and Movies and sometime surf the net (1024x768 Interlaced Med Res monitor mode), not to use MAME when it is already enhanced and availabe for DOS.
D, I have no problems running any game, you have to not use the Generate function of AdvMAME though, I use the clock setting and create the modes using the Advv.exe utility.
If you need help, e-mail me privately for assistance..
Andy Geez
Off course it is also possible to create your own perfect VESA modes using MONARC+ for regular MAME
my old MonARC+ page
http://homepage.ntlworld.com/andrew.lewis5/arcade/monarc.htmDos Blade/Win Blade drivers
http://www.ultimarc.com/Blade.html