Loads buttons for use in Log Mode.
From the left, the strings are: page up button mouseon graphic, page up button mouseoff graphic, pagedown button mouseon graphic, pagedown button mouseoff graphic.
By default, these are "uoncur.bmp","uoffcur.bmp","doncur.bmp","doffcur.bmp".
All these images must be of the same size, or this command will fail.
The log mode buttons cannot be animated.
The button to enter log mode is located at the upper right of the text window.
Its position cannot be changed once set, so please make sure you set it right the first time around.