I recently put skip validity checks in my mame .99 ini.  It worked fine, saved ALOT of time loading games.  BUt after a few days, it removed itself from my ini.  I dod NOT change any settings during that time.  It removed itself twice, a few days apart.  Any ideas why, or how?  Does mame do it manualy, or restore a past ini?  It is driving me nuts not knowing how it dissapears every few days....
Steve
PS- I posted a thread for this question, but besides not getting a reply, people arent even reading it...