I agree. Very often I lose sight and have to resort to looking away so that the pointer shows up and I can find it again.
Maybe having a key that would put a temporary or toggled, contrasting box around it would work. Even being able to change the color on the fly would help.

HOW TO PLACE UNITS AND OBJECTS TO A SPECIFIC SPOT

1. Place a TRIGGER onto the map. Use a radio call as the ACTIVATION.
2. Type copyToClipboard(Str(getPosATL player)); into the ON ACTIVATION field.
3. Move the PLAYER unit (ensure that there’s only ONE player/playable unit) to the spot where you want the unit placed, and make the radio call.
4. Shift/Tab out of the game, paste the co-ordinates onto a text file, and copy the co-ordinates.
5. Place the co-ordinates (syntax = this setPosATL [co-ordinates];) into the INITIALIZATION field of the unit you want to set.
6. When you place the unit in the UNSPECIFIED location, make sure to face it the direction you want it to face after it’s positioned. The co-ordinates will set the position and height, but NOT the facing.