Pages with images ask for password

I have successfully added CMS Builder to 3 sites now with great results. Unfortunately, I've hit a problem with a client who wants to add images to their pages, the symptoms are as follows:

When a visitor tries to call up a page with images they are prompted to supply the .htaccess password that I've protected the cmsAdmin directory with. Of course they can click cancel, but if there are 5 images on the page they have to click cancel 5 times. As there is absolutely no problem displaying a page without images, I've temporarily fixed it by commenting the images out in the HTML view within CMS Builder.

I've double checked the permissions on the files and folders within the cmsAdmin directory and everything is fine. As there is no problem uploading images or adding them to the page via the CMS Builder interface, I don't think this is the problem.

I suspect that the answer to the problem will be to remove the "require user xxxxxxxx" line that I've added to the bottom of the .htaccess file in the cmsAdmin directory, but I am keen to provide this extra layer of security for the client.

Has anyone seen this problem before and is there a better fix?

Thanks in advance,

Tim