Hello! I read through the FAQ thread and googled thoroughly but to no avail. This is my first time using Slot 1 devices- my last one was an old-fashioned "M3 Adapter" for Slot 2 on my flashed DSL. I have tried two different DS Slot 1 flash cards, and this same issue has cropped up on both, but with slightly different symptoms. Previous device (now nonworking): R4 "Dual Core" SDHC card, junk clone-of-a-clone. Didn't work properly with the software from the "official" website, which made it report that it was an AceKard 2 "RPG" (what). Kind of-sort of worked with "R4 for Clones". The "Wood"-style list would show up, but to the left of each NDS file's name would be a gray icon of a DS with a big question mark over it, which I interpret as "Unreadable file". The occasional file would work- like the .NDS that is used to update the onboard chip to work on newer DSi/3DS FW, but most games and homebrew would not, giving this [?] icon. I found that testing version after version of the "Wood" software (by launching .nds files) would sometimes make particular .nds files work, but not most of them. I switched to the ACE3DS because the R4 "Dual Crap" spontaneously became nonworking and won't even recognize as a cartridge to the NDSL or 3DS it worked perfectly in moments before. You win some, you lose some. Current device: ACE3DS Plus. Using the supplied software, the ACE menu comes up and I am able to run all the emulators they pre-included (.NDS files), Moonshell and use the "NDS" option, which launches what looks like a variation of Wood. However, inside "Wood," only the emulators can be launched. Other NDS files show up, again, as question mark icons! If I list the .NDS files in Moonshell, they work from there too (which was surprising, as that never worked on my old Slot 2!) But .NDS Files I placed there myself do not- they give an error that it's not a recognized file. I have heard of "DLDI Patching" NDS ROMs to make them see a FAT filesystem, but I've never heard of having to patch or modify NDS files (games, homebrew) to be recognized by a flash card (on Slot 1). Is there something amiss with all of these, with my firmware, with "Wood"..? As far as I can tell these are perfectly clean ROMs and work "out of the box" in Desmume and No$GBA (DS 'edition'). Thanks for any input, and sorry if this is a question that's been asked a billion times. I'll provide a photo of the screen and the [?] icon I keep encountering if it helps.