I'm at my wits end! I spent nearly allday yesterday trying to figure this one out, but no matter what i try, or what method i use i get the exact same error! And it relates to the driver model1.c. As you guys probably know i'm not a codie and so i have no idea what the error means other than it relates to that file. After hours of searching (no exagerating), the only info i found was this, but as you can see, the person who reported the problem is trying to build in linux. The linked error (is the same as mine): src/mame/video/model1.c: In function 'void draw_quads(model1_state*, bitmap_rgb32&, const rectangle&)':src/mame/video/model1.c:307:17: error: array subscript is above array bounds [-Werror=array-bounds] while(p[ps2+1].y == cury) ^src/mame/video/model1.c:319:17: error: array subscript is below array bounds [-Werror=array-bounds] while(p[ps1-1].y == cury) ^src/mame/video/model1.c:319:17: error: array subscript is below array bounds [-Werror=array-bounds]src/mame/video/model1.c:329:17: error: array subscript is above array bounds [-Werror=array-bounds] while(p[ps2+1].y == cury) ^src/mame/video/model1.c:329:17: error: array subscript is above array bounds [-Werror=array-bounds]Compiling src/mame/video/segag80v.c...src/mame/video/model1.c:305:17: error: array subscript is below array bounds [-Werror=array-bounds] while(p[ps1-1].y == cury)I've downloaded mame-source and mingw multiple times I start with fresh extraction of mame source every time The first few times i tried with my usual alterations to the source Then multiple times with zero alterations or diff's added I tried Headkaze's compiler too, and although it ploughs through the error, it ultimately still fails a few moments later everytime. Has the compile process changed? Or is there a real bug in the source? I tried to compile over 10 times (i can be determined when i want to be ) but i surrender. Please someone tell me they know what's going on here. Pleeeeeeeeeeeeeeeease EDIT - OK i just tried 32bit version to make sure it wasn't a 64 thing, and sure enough same error. I took a screenie this time though: SOLUTION: Do not use the "new" tools promoted on the official page - they cause errors. Instead use an earlier version - this version is proven to work: http://mamedev.org/downloader.php?file=tools/mingw-mame-20121207.exe You should point your grattitude to tthurman, otherwise known as Todd for finding this solution! It's all him! Thanks again man - you preserved my sanity