How to: NOT STRETCH the image in Movie Clip

hi,

first of all let me tell you what I have done up to now.
I created a movie clip and load picture in it

**myPictureMC.loadMovie(“someimagehere.gif”);

**and add 4 buttons to resize the movieClip.

Upto here everything was fine, but I realised that when I resize the movieClip, the picture in it stretches.

Is there someway, to keep the picture as it is and NOT stretch?

Thanks
RomBerry