Create yourself a MAME.INI and make sure it has the following in it:
skip_disclaimer 1
skip_gameinfo 1
I think it will still ask you to type OK when games have problems...but you could compile your own MAME build to get around that.
I can email you a config file with a few emus setup if you like, but I seriously think it would be easier to create you own via the menus, rather than trying to edit my setup.
