webcam doesnt work properly

Hello

My webcam does'nt work porperly. It works mostly in skype and in MSN, but the installed programm WEBCAM does not show any picture.
So i loaded down the programm cheese. Cheese also shows an error. When starting cheese in terminal I get those messages:
[*[user@localhost ~]$ cheese
** Message: Probing the webcam, please ignore the following, not applicabable tries
** Message: Error running pipeline 'v4l2src ! fakesink': Could not get enough buffers from device '/dev/video0'. [v4l2src_calls.c(1034): gst_v4l2src_capture_init (): /pipeline0/v4l2src0:
we received 0 from device '/dev/video0', we want at least 2]
** Message: test pipeline for v4l2src failed:
[v4l2src ! fakesink]: Could not get enough buffers from device '/dev/video0'.
** Message: Error running pipeline 'v4lsrc ! video/x-raw-rgb,width=640,height=480 ! fakesink': Could not get/set settings from/on resource. [v4l_calls.c(409): gst_v4l_set_chan_norm (): /pipeline1/v4lsrc0:
Error setting the channel/norm settings: Invalid argument]
** Message: test pipeline for v4lsrc failed:
[v4lsrc ! video/x-raw-rgb,width=640,height=480 ! fakesink]: Could not get/set settings from/on resource.
** Message: Error running pipeline 'v4lsrc ! video/x-raw-yuv,width=640,height=480 ! fakesink': Could not get/set settings from/on resource. [v4l_calls.c(409): gst_v4l_set_chan_norm (): /pipeline2/v4lsrc1:
Error setting the channel/norm settings: Invalid argument]
** Message: test pipeline for v4lsrc failed:
[v4lsrc ! video/x-raw-yuv,width=640,height=480 ! fakesink]: Could not get/set settings from/on resource.
** Message: Error running pipeline 'v4lsrc ! video/x-raw-rgb,width=320,height=240 ! fakesink': Could not get/set settings from/on resource. [v4l_calls.c(409): gst_v4l_set_chan_norm (): /pipeline3/v4lsrc2:
Error setting the channel/norm settings: Invalid argument]
** Message: test pipeline for v4lsrc failed:
[v4lsrc ! video/x-raw-rgb,width=320,height=240 ! fakesink]: Could not get/set settings from/on resource.
** Message: Error running pipeline 'v4lsrc ! video/x-raw-rgb,width=1280,height=960 ! fakesink': Could not get/set settings from/on resource. [v4l_calls.c(409): gst_v4l_set_chan_norm (): /pipeline4/v4lsrc3:
Error setting the channel/norm settings: Invalid argument]
** Message: test pipeline for v4lsrc failed:
[v4lsrc ! video/x-raw-rgb,width=1280,height=960 ! fakesink]: Could not get/set settings from/on resource.
** Message: Error running pipeline 'v4lsrc ! video/x-raw-rgb,width=174,height=144 ! fakesink': Could not get/set settings from/on resource. [v4l_calls.c(409): gst_v4l_set_chan_norm (): /pipeline5/v4lsrc4:
Error setting the channel/norm settings: Invalid argument]
** Message: test pipeline for v4lsrc failed:
[v4lsrc ! video/x-raw-rgb,width=174,height=144 ! fakesink]: Could not get/set settings from/on resource.
** Message: Error running pipeline 'v4lsrc ! video/x-raw-rgb,width=160,height=120 ! fakesink': Could not get/set settings from/on resource. [v4l_calls.c(409): gst_v4l_set_chan_norm (): /pipeline6/v4lsrc5:
Error setting the channel/norm settings: Invalid argument]
** Message: test pipeline for v4lsrc failed:
[v4lsrc ! video/x-raw-rgb,width=160,height=120 ! fakesink]: Could not get/set settings from/on resource.
** Message: Error running pipeline 'v4lsrc ! fakesink': Could not get/set settings from/on resource. [v4l_calls.c(409): gst_v4l_set_chan_norm (): /pipeline7/v4lsrc6:
Error setting the channel/norm settings: Invalid argument]
** Message: test pipeline for v4lsrc failed:
[v4lsrc ! fakesink]: Could not get/set settings from/on resource.
using photo source: videotestsrc
using video source: videotestsrc

Is there anybody who can help me - I usually work with Ubuntu and the programms and sources of Linpus are new for me....
Thanks a lot
Eva]