when I click, the cursor shows a little yellow area. Good. But if THEN I move the cursor 'holding clicked' (for example to select a part of a text) I can hardly see 'under' the yellow shadow to see exactly when I've ti finish the movement.
The solution could simply be that at the moment I click-move the cursor, it stops to be highlighted, letting me see the underlying highlighted (selected) text and must stay 'inactive' even when I stop to move, so long as I stop to 'hold clicked' the cursor.

Was I clear enough? In any case, windoz users that looks at my screen now says "Hey! Wonderful, this Apple idea!" ....and I have to explain that this in not a system built in functionallity! Must I add a better compliment???? ;-)

Thanks a lot!