File Explorer is not working properly

[koteswararao]

hi ,
we have the telerik dll version 2012.1.411.40 i am implementing the file explorer in my application i but it didn't working properly as like of the demo site following are the problem i have faced

1) while page is loading i got the error in alert box like "in valid characters in folder name " my path name is ~/HTMLEditorImages
2) after the page has loaded the div which contain the upload ,refresh,... will became disable mode
following is the code i have written for this  plz check the images for better problem understand

 <telerik:RadFileExplorer runat="server" ID="FileExplorer1" Width="520px" Height="520px"
                    OnClientItemSelected="OnClientItemSelected" InitialPath="~/HTMLEditorImages">
                    <Configuration ViewPaths="~/HTMLEditorImages" UploadPaths="~/HTMLEditorImages"
                        DeletePaths="~/HTMLEditorImages" />
                </telerik:RadFileExplorer>


can you please suggest me how can we over come these two issues
Thanks & Regards
m.koteswararao