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What does not
IMVU works pretty good now. But in Direct3D mode it will not show graphics, OpenGL mode is SLOW!, and Standard mode is bearable in speed. If your version crashes your whole Linux system check graphics driver(imvu would not work till I found a good driver for my ATI Radeon HD 4200), if it crashes but not your whole system("imvu has crashed" message asking if you want to restart it may pop up) than its a wine bug.