I have defined a Variant attribute for selecting the garment size of my category items.  When the user selects the garment size in the detail view using a dropdown,  the sku changes by appending A, B, C, etc. (thats fine), but the image disappears.   Is there any way to prevent this.

Thanks very much.

I actually deleted my test catalog item, re-added it and now the image stays?   I cannot find anything in the Quick Start Guide (rev 1.0.5)  about overriding variants?