When inserting image onto a page via WYSIWIG Editor -> "Insert/Edit Image" icon, the "ok" and "cancel" buttons are no longer visible when there are too many image attachments

When using the WYSIWYG editor and editing a page, if a user clicks "Insert/Edit Image", the "Image Properties" popup window is displayed. If there are too many attachments, the "ok" and "cancel" buttons at the bottom of the page can no longer be seen.

In Mozilla Firefox, the user can scroll down using the mouse's scroll wheel or the up/down buttons on the keyboard - however when using Internet Explorer this is not possible.

In Internet Explorer: currently the only way to make the 'ok' and 'cancel' buttons visible is to click on a blank space within the popup, and drag the mouse downward whilst holding the mouse button down - effectively "highlighting" the contents. This will make the button visible and thus usable.