Skype with webcam cauze system crash

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https://bbs.archlinux.org – Hi!If I use skype for video chat, it's working for a while, but after some time the whole system freeze. This happens if I try to set up my camera in skype moe than one time (for example after the time I open the preferences and video devices again). If I start it from teminal, after an exit from video devices preferences I get error: "libv4l2: error dequeuing buf: Invalid argument". Same error is if I try to start it with: "LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so skype". I tried to figure out how can I fix it, without any results. Any idea what could I so?greetz saa (HowTos)