Smaller screens definately are more difficult due to the size that structure is shown in the SI image...

A few things that can help...

*Anytime something looks interesting in the display...stop the screen scroll by pressing the 4way cursor...then move the cursor over that interesting item...and start pressing the + button on the unit face to open a "Zoom box" and zoom in on the item...

*Then press "Exit" until the zoom box goes away....

*While the scroll is still frozen...press "Menu" one time to open the Xpress menu...and change the "Si Side" selection to "Left" or "Right" side only...(this will, in effect, zoom that entire side of the SI image)...

*While the scroll is still frozen...change the pallette colors in the Xpress menu...(sometimes different colors show better detail than others)...

*While the screen is still frozen...Open the "SI Enhance" menu from the Xpress menu...and play with the Sensitivity and Contrast settings...

Rickie