error after upgrade to kubuntu 10.04

[mierdatutis mi]

Hi,

I have an error after upgrade to kubuntu 10.04.
When I do startx it says me:

......
undefined symbol:UpdateSpritefoScreen
Failed to load /usr/lib/xorg/modules/drivers/fglrx_drv.so


Could you help me please?
Many thanks and sorry for my english!
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