Loops movie play back changing direction.

Loops movie play back after last frame is shown.

Shows file location and scaling. Can be adjusted using the 'enter' key. 

Loops slide show after last image is shown.

Sets the thumbnail box. Size of thumbnails will always be scaled to fit.

Creates 24 bit previews for high quality images. (Uses more disk space).

Double click selected image starts slide show. Otherwise rotates to next view.

Draws pathname in image header, both in slide show and main window.

Displays help tips for the control buttons in main window.