I'm having the same issue
I have the following:
Inspiron b130
- Intel Celeron R 1.6 ghz
- 1Gb memory
- Intel Mobile 915GM/gms,910gml Express chipset family
- Driver 6.14.10.4609 dated on 6/6/2006 (i wish i was making that up)(that is the newest one dell offers)
running windows 7 home 32bit
I've been able to play world of warcraft on this laptop at 20 fps (when i turn off the second monitor)
already tried turning off the monitor and running the game - it still gives the muleexception error
INFO [Properties.<init>] VERSION: 1.1.1
INFO [Properties.<init>] Classpath: data.jar
INFO [Properties.<init>] Java VM: 14.0-b16
INFO [Properties.<init>] Java Runtime: 1.6.0_14-b08
INFO [Properties.<init>] OS: Windows XP 5.1 x86
INFO [Properties.<init>] Java Library Path: lib
INFO [Properties.<init>] Max Memory: 266403840
INFO [Properties.<init>] Avaialble Processors: 1
INFO [PropertiesBase.readFromFile] Reading Settings from file settings.txt
INFO [Settings.<init>] Settings file not found: settings.txt (The system cannot find the file specified)
INFO [MasterClient.close] MasterServer: Closing...
INFO [MasterClient.close] MasterServer: Closed (0ms)
INFO [MetaFrame.<init>] Creating Meta Frame
INFO [MapSkinParser.findSkins] No extra skins found
INFO [MasterClient.logSend] MasterClient: Sending Enter Lobby
INFO [Login.dispose] Disposing login
INFO [Main.main] Creating game container
INFO [MuleGameContainer.create] LWJGL Version: 2.2.1
INFO [MuleGameContainer.create] Desktop Display Mode: 1440 x 900 x 32 @75Hz
INFO [MuleGameContainer.create] Current Display Mode: 1440 x 900 x 32 @75Hz
INFO [MuleGameContainer.create] Display Adapter: RDPDD
INFO [MuleGameContainer.create] Display Driver: 6.1.7600.16385
INFO [SlickLogSystem.info] Slick Build #269
INFO [MuleGameContainer.<init>] TargetDisplayMode: 640 x 480 x 0 @0Hz
INFO [MuleGameContainer.setVSync] Setting vsync: true
INFO [MuleGameContainer.<init>] Setting pixel format
INFO [MuleGameContainer$1.run] Pixel format: Samples=0 Alpha=0 Depth=8 Stencil=0
SEVERE [MuleGameContainer$1.run] Pixel format not accelerated
SEVERE [Main.logError] com.turborilla.mule.MuleException: Failed to initialise LWJGL display
at com.turborilla.mule.view.MuleGameContainer.<init>(Unknown Source)
at com.turborilla.mule.view.MuleGameContainer.create(Unknown Source)
at com.turborilla.mule.Main.main(Unknown Source)