I have already installed rocketdock on my laptop, and it works perfectly. now I installed and resinstall it several times on another pc but the drag and drop simply doesn't work. the dock doesn't take whatever application or file or shortcut I want to add . I made registry ckeaning but nothing. for both pcs os xp pro s3. any idea about the reason  
thanks

Right-click and uncheck "Lock Items".

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Glomping the internet populace.

One forum at a time.

of course, done already:no:
no more creative ideas about this bug?