X eats up my CPU

Hi,

on my Thinkpad R60 (with a Radeon X1400) I have the follwoing problem:

On all ati-specific drivers (radeon, radeonhd, fglrx) blitting
operations (moving windows, selecting multiple icons on the gnome
desktop, surfing websites with flash like www.spiegel.de) turn X to take
up to 100% of CPU usage.

Has anyone similar problems or is that a flaw in my GPU?

regards

christoph 

(attached my xorg.conf)

# Xorg configuration created by system-config-display

Section "ServerLayout"
	Identifier     "single head configuration"
	Screen      0  "Screen0" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"
	InputDevice    "Synaptics" "CorePointer"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "de"
	Option	    "XkbVariant" "nodeadkeys"
EndSection

Section "InputDevice"
	Identifier  "Synaptics"
	Driver      "synaptics"
	Option	    "Device" "/dev/input/mice"
	Option	    "Protocol" "auto-dev"
	Option	    "Emulate3Buttons" "yes"
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "radeonhd"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

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