Image Disappears as3

[FONT=Arial][SIZE=3]Hi
I have a strange problem on a project i am working on and i have nearly come to the end and need this bug solving and i am hoping someone will have the answer!!

I create a movieclip and then allow the user to load an image from their computer,I then add the image to a new movieclip that matches the height and width of the image and add this to the first clip at X Y location 0, it also scales the image to fit the first movieclip. [/SIZE][/FONT]
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[FONT=Arial][SIZE=3]This part works ok. Now i want to be able to allow the user to click the image and drag the image to where they want, at the moment i have not added any code to limit where the image can be draged to. This works but if the image is taken to the right the movieclip holder is still there but the image scrolls to the left and eventually disappears. If you drag the movieclip back to the left the image scrolls back into view. [/SIZE][/FONT]
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[FONT=Arial][SIZE=3]The position it starts to dissapear is also affected if the window is full screen or resized window. I have added scaleMode=StageScaleMode.NO_SCALE to the stage and movieclips 1 & 2 [/SIZE][/FONT]
[FONT=Arial][SIZE=3]Has anyone any suggestions??[/SIZE][/FONT]