I get the same error when running every mame rom that I have. I'm using Mame32 and when I run by itself, the roms load fine but under MCE2005, I get a black screen and get taken back to the Gameex screen or the rom test screen gets loaded. I'm uploading my log file for info. Thanks, Rooster 22:58:31.9 5/22/2005: GameEx: Version 4.01: Starting Log 22:58:31.9 5/22/2005: Operating System Platform ID: Win32NT 22:58:31.9 5/22/2005: Operating System Version: 5.1 22:58:31.9 5/22/2005: Running Randomize() 22:58:31.9 5/22/2005: Running Misc startup tasks 22:58:31.9 5/22/2005: Hiding Cursor 22:58:31.9 5/22/2005: Setting Menu types 22:58:31.9 5/22/2005: Opening Configuration File 22:58:32.0 5/22/2005: Getting Configuration Values 22:58:32.0 5/22/2005: Using Theme: Default - Default 22:58:32.0 5/22/2005: Checking for alternate Image Directory for Theme: Default - Default 22:58:32.0 5/22/2005: Applying Language/Text 22:58:32.1 5/22/2005: Snap Delay set to: 2 22:58:32.1 5/22/2005: Is Media Center running? 22:58:32.1 5/22/2005: Media Center is running 22:58:32.1 5/22/2005: Check Media Center Exit/Start Mode 22:58:32.1 5/22/2005: Media Center Mode 2 22:58:32.1 5/22/2005: Closing Media Center 22:58:38.0 5/22/2005: Get other settings 22:58:38.1 5/22/2005: Launching HideOS.exe 22:58:38.8 5/22/2005: Hiding Taskbar 22:58:38.8 5/22/2005: Start work for Form 22:58:38.8 5/22/2005: Getting Original Screen Size 22:58:38.8 5/22/2005: Loading ICON 22:58:38.9 5/22/2005: Initializing Component 22:58:39.0 5/22/2005: Using General Font: Trebuchet MS 22:58:39.0 5/22/2005: Using Title Font: Trebuchet MS 22:58:39.0 5/22/2005: Initialising DirectDraw 22:58:39.0 5/22/2005: Applying GameEx is Loading Image 22:58:39.0 5/22/2005: Creating DirectDraw Device 22:58:39.2 5/22/2005: Setting Resolution to 800x600 32 bit color 22:58:39.2 5/22/2005: Creating DirectDraw Surfaces 22:58:39.2 5/22/2005: Creating Primary Surface - Full Screen Mode 22:58:39.2 5/22/2005: Creating Back Buffer 22:58:39.2 5/22/2005: Loading graphic surfaces 22:58:40.0 5/22/2005: Creating Fonts 22:58:40.0 5/22/2005: Creating Menu Font 22:58:40.2 5/22/2005: Creating Game Font 22:58:40.3 5/22/2005: Creating Menu Font Standard Size 22:58:40.9 5/22/2005: Creating Font Black 22:58:41.0 5/22/2005: Creating Font Black Small 22:58:41.1 5/22/2005: Creating Game Font Faded 22:58:41.2 5/22/2005: Creating Title Font 22:58:41.5 5/22/2005: Initialising Windows Media Player Component 22:58:41.5 5/22/2005: HTML Apps is on, initialising Web Browser Component 22:58:41.7 5/22/2005: MAME Path is: C:\Emulator\Mame32 22:58:41.7 5/22/2005: MAME EXE file is: mame32.exe 22:58:41.7 5/22/2005: ROM Path is: C:\Emulator\Roms 22:58:41.7 5/22/2005: Catver.ini is located at: C:\Program Files\GameEx\DATA\catver.ini 22:58:41.7 5/22/2005: controls.ini is located at: C:\Program Files\GameEx\data\controls.ini 22:58:41.7 5/22/2005: History.dat is located at: C:\Program Files\GameEx\DATA\history.dat 22:58:41.7 5/22/2005: nplayers.ini is located at: C:\Program Files\GameEx\DATA\nplayers.ini 22:58:41.7 5/22/2005: MAMEinfo.dat is located at: C:\Program Files\GameEx\DATA\mameinfo.dat 22:58:41.7 5/22/2005: Loading Controls.ini map file 22:58:41.7 5/22/2005: Loading Custom Emulators 22:58:41.9 5/22/2005: Snap Path is: C:\Emulator\Mame32\snap 22:58:41.9 5/22/2005: AVI Snap Path: Not Found 22:58:41.9 5/22/2005: Flyer Path is: C:\Emulator\Mame32\flyers 22:58:41.9 5/22/2005: Cabinet Path is: C:\Emulator\Mame32\cabinets 22:58:41.9 5/22/2005: Title Path: Not Found 22:58:41.9 5/22/2005: Panel Path: Not Found 22:58:41.9 5/22/2005: Icon Path: Not Found 22:58:41.9 5/22/2005: Marquee Path is: C:\Emulator\Mame32\marquees 22:58:41.9 5/22/2005: Attempting to load game list 22:58:42.2 5/22/2005: Loading last used Game List 22:58:42.5 5/22/2005: Initialising Bass Audio Library 22:58:44.3 5/22/2005: Creating DirectSound Device 22:58:44.3 5/22/2005: Trying: Primary Sound Driver 22:58:44.3 5/22/2005: Loading Sound Files 22:58:44.4 5/22/2005: DirectSound Device Created Successfully 22:58:44.4 5/22/2005: Initialising DirectInput for Gamepad support 22:58:44.5 5/22/2005: Playing Startup Video 22:58:44.5 5/22/2005: Playing intro sound file 22:58:44.5 5/22/2005: Initialization OK! Starting GameEx! 22:58:44.5 5/22/2005: Testing Main Loop Once: Processing Frame 22:58:44.5 5/22/2005: Testing Main Loop Once: Getting Tick count 22:58:44.6 5/22/2005: Testing Main Loop Once: Checking for song change 22:58:44.6 5/22/2005: Testing Main Loop Once: Front buffer exists? 22:58:44.6 5/22/2005: Testing Main Loop Once: Surfaces need restore? 22:58:44.6 5/22/2005: Testing Main Loop Once: Checking Joystick for input 22:58:44.6 5/22/2005: Testing Main Loop Once: Drawing Background 22:58:44.7 5/22/2005: Testing Main Loop Once: Drawing Logo 22:58:44.8 5/22/2005: Testing Main Loop Once: Flipping Surfaces 22:58:44.8 5/22/2005: Testing Main Loop Once: Main Loop ran successfully 22:59:38.4 5/22/2005: Running: cmd.exe /c C: C:\Emulator\Mame32\mame32.exe zaxxon -rompath C:\Emulator\Roms -skip_disclaimer -skip_gameinfo -triplebuffer -nowindow -joy 23:00:31.8 5/22/2005: Running: cmd.exe /c C: C:\Emulator\Mame32\mame32.exe pacman -rompath C:\Emulator\Roms -skip_disclaimer -skip_gameinfo -triplebuffer -nowindow -joy 23:00:45.2 5/22/2005: Exiting GameEx! 23:00:45.2 5/22/2005: Saving Settings 23:00:45.2 5/22/2005: Writing Game List to disk 23:00:45.3 5/22/2005: Launching Media Center