I mean no offense but you don't install a test build of mame with a fe, you run it from the command line. If you can't run from the command line then you probably aren't qualified to do debugging for the mame team anyway.
You don't want understand... Try to test all mame games typing the rom name in the command line to test if the new render engine works with all of them!!!! Oh, sorry, I forget that you can't think more than a one year old kid (Don't offense, please).
Why don't you try to help? Any problem? Oh, sorry again. I forgot that you are too busy debugging your
programs.
It's good that you posted this, but I don't think it's relevant info until .107 comes out. As Aaron himself said, don't run these builds and expect them to work correctly.
Aaron requested people to test the changes. Of course you are not part of this people. Sit on your chair and wait to the 107. In my town this is called egoism. Others like me want to help to MameDevs.
But after release 107, please be quiet.
The upper/lower conversion is part of the "fuzzy logic system" that also handles the rom searching and the "best match" stuff. All that code has to be re-written before stuff will work again.
Ooooh, do you think I didn't know that?. You're my man, Howard. Really. 
What can we do without your invaluable help, Howard?
Like I said before (in another topics), If you don't want to help, don't do it. But then, be quiet, please.
What in the blue hell is your major malfunction?
I test for game problems myself and yes I do manually type the rom names from the command line. Why? Well it's common sense when you are debugging a program to eliminate any other possible causes for bugs. I.E. you don't use a fe to debug mame, because as you discovered often the bug isn't even in the emu. Let me know if I'm making too much sense for you and I'll give you bad advice insted.
Aaron requested fro everyone to check for errors in MAME, not mamewah. He didn't suggest you complain but mamewah not working on a test build that isn't even working yet. As I said, just wait till .107 and it'll work again. Use the command line to debug, as I said, that is the proper way to do it. If you are too lazy to type the rom name you can just drag-n-drop. Pitiful excuse on your part man, just pitiful.
I WAS being helpful. The problem with some people on this board (look in the mirror) is they only consider a response "helpful" if someone tailors to their every whim or gives them the answer they were expecting in the first place. Don't shoot the messenger, I just told you exactly what Arron or any of the mame devs would have told you given the post you made, namely don't debug with a fe because it adds in extra variables to worry about and don't complain about fe-related issues on a test build because it would waste the time of both the fe author and fe devs to look into something that very well might be fixed in the next official build. Your problem is this issue effects you personally, so you want it fixed yesterday. Who cares if it means poor minwah has to re-write his code just so you can test .106u3 through .106u6 or whenever it gets fixed as long as you can save yourself three keystrokes from using the command line.
Like it or not, the best advice a person could have given you was to be patient. Apparently patience isn't a virtue you possess.
Should minwah look into this? Sure he should, it's bad coding practice to spit out the command line in all caps, BUT the way you went about bringing it up didn't sound very selfless at all. It sounded to me like you could care less, but now that it is a inconvenience to YOU that it should be fixed immediately.
In conclusion I don't know what in the world crawled up your butt but you owe me an apology. I didn't say a single thing offsense, but of course as YOU can't think beyond the level of a one year old kid (nice grammar btw) you took it that way because I suppose you are insecure about yourself or something, I really don't know.
See I'm being offensive now. You want to act a jerk well I can do that too. Get over yourself. My advice is free, if you don't like it just ignore it. I love how people quote one tiny little half a sentence comment that I make, a generalized comment that is NEVER directed towards them in any way and rant for a page or so about how rude and childish I am. You guys have issues, I mean it. I feel bad for you really. I don't understand how a rational human being can get so upset over a tiny little harmless sentence. Are you lonely? Do you have a fear of rejection? What? I don't get it. I never take the low roads in these kind of discussions, but this time I am genuinely offended so I'll stop trying to be civil and just throw it all out there.
What did I ever do to you except do what no one around here has the balls to do but me, namely give an uncensored, unbiased, non-sugar-coated opinion?
So, in the immortal words of George Carlin
And I apologize to anyone except cananas who happens to run across this thread. I think it's silly to insult people on messageboards but if someone disrespects me this badly in a public forum I'll sure as hell finish it.