In the latest internal build version of our controls that you can download from your Client.Net account, we have added a new property for the RadColorPicker - KeepInScreenBounds. I suppose that in case you set KeepInScreenBounds=false for the color picker control, the problem will be solved:
|<telerik:RadColorPicker ID="RadColorPicker1" runat="server" ShowIcon="true"
By default, in case the palette of the color picker will not show in the visible viewport of the browser window, the control relocates it so that the whole palette is visible and the user does not need to scroll the page in order to see it. This property switches this functionality off.
Could you please download the latest internal build and let me know whether this fixes the problem? In case it does not, send me the code of your page that demonstrates the problem and I will do my best to help.
the Telerik team