Scripting Error in drag and drop of the UIelements

Hi,
This is ashwin ,iam new to webdynpro abap ,as iam started in uidevelopement trying to drag and drop uielement into layout its is showing error while iam dragging and droping the uielement like scripting error.
can any one help mi what that scripting error could be rectified?
Regards,
Ashwin

Hi,
Thanks fo rthe reply ,i tried on st22 its showin no error .Iam getting a popup saying error as "__ERROR HAS OCCCURED IN THE SCRIPT OF THE PAGE".
I am using IE 7 Browser and having high internet connection, iam not understanding why am i unable to drag and drop  UIElements on the layout ?
Regards,
Ashwin

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