Dolphin on Ubuntu 10.10 64Bit crash

[Cyris]

whenever i play super smash brothers brawl on the 64bit linux build with the openGL plugin it crashes as soon as i choose group or in classic mode when 2 characters attack eachother why is this? it doen't crash with the software rendering plugin and i dont want to use wine to play dolphin. the wine windows API layer slows the emulator down. what should i do