# Movie clip and button instance error

**URL:** <https://forum.kirupa.com/t/movie-clip-and-button-instance-error/200258>\
**Category:** Uncategorized\
**Created:** [September 10, 2006, 7:24pm UTC](https://forum.kirupa.com/t/movie-clip-and-button-instance-error/200258 "2006-09-10T19:24:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![rosanna](https://avatars.discourse-cdn.com/v4/letter/r/e0b2c6/32.png) [@rosanna](https://forum.kirupa.com/u/rosanna)\
**Post date:** [September 10, 2006, 7:24pm UTC](https://forum.kirupa.com/t/movie-clip-and-button-instance-error/200258/1 "2006-09-10T19:24:34Z")

</div>

[COLOR=#191970]:h: Hello there. I constantly meet the same problem by making my thumbnail gallery.  
What I want to do is to create an enlarged preview of my picture by passing my mouse on its own thumbnail like a tooltip but for image.  
So I import from library an image (thumbnailed) convert it to movie clip and in the Mclip stage I use action script with on rollover action. But I always get the same error : on rollover only for button instance. Do I have then to convert my image as button ???  
I am lost . Please help me, I’m getting nuts. : (  
THANKS !!![/COLOR]