Ok, I've seen a thread or two about this, but I still can't seem to get the two to work together. I have tried the recommended settings, and when I select a game to play, I see a black screen for 1/2 a second and then I'm returned to the GameEx screen. I've got this in GameEx config: nullDC_Win32_Release-NoTrace.exe -config ImageReader:DefaultImage="[ROMPATH]\[ROMFILE]" In nullDC.cfg: ;; nullDC config file;; [imagereader] PatchRegion=0 LoadDefaultImage=1 LastImage=c:\game.gdi DefaultImage=defualt.gdi [nullDC] Dynarec.Enabled=1 Dynarec.DoConstantPropagation=1 Dynarec.UnderclockFpu=0 Dreamcast.Cable=3 Dreamcast.RTC=1909898283 Dreamcast.Region=1 Dreamcast.Broadcast=0 Emulator.AutoStart=1 Emulator.NoConsole=1 There's more in there, but I think this is the important stuff. With emulatorautostart and emulatornoconsole set to 1, I can't start nullDC at all, but if I set them to 0, I can start outside of GameEx. I think this is common, though. EDIT: I've heard that the nullDC loader is not necessary for this version of nullDC. Don't even know how to use it, but if it is indeed necessary, I'm clueless. Oh, and one more, seemingly unrelated issue. I have all my dreamcast images packed with pakkiso. Do I really have to unpack each and every one before I can play them? Or is there, perhaps, some way around this? I do have a registered version of GameEx, btw, but I'm pretty sure goodmerge doesn't help me here.