forcing images to be cached?

[MrPolite]

I have a page with a lot of small thumbnail images. It seems like that every time I view the page, every single thumbnail is reloaded again. Is there any way to tell the browser to use the browser cache to save the images?

[plenderj]

Tools > Internet Options > Temporary Internet Files Panel > Settings > Automatically.

Or, if this is ASP.Net reloading the images, e-mail me plenderj@hotmail.com and I'll show you some code I have developed to cache files.