Updating product images

I don't think that there is a work around for this problem, but I thought I'd post the problem here just in case I am missing something.

I have updated about 40 of the product images while I was completing the task of taking photos of all 460 products. I copied the updated files over the original files in the uploads folder.

But this does not change the thumbnails and the only way I've found to change the thumbnails is to go into each one of the 40 products and manually replace the image file. This is a very time wasting process.

Is there a way to force a regeneration of the thumbnails for all the product image files in the media/com_hikashop/upload folder?

Thanks

Jim

So simple )

many thanks

Jim