In Planet list, click the small planet symbol to the left of each entry in the list. Move the mouse away from the list then scroll the mouse wheel, the planet will always appear in the centre of the screen highlighted. Avoid left clicking the mouse, as this could inadvertently give focus to another planet, and when you zoom in its the wrong one.

If you dont click the small planet symbol it will not work properly. Sometimes I've found that if its on the same screen page, it seems it doesnt highlight properly, but thats rare, and when that happens I just quickly click the planet symbol of any planet to force the screen to redraw, then click back on the one I'm searching for (milli seconds to do that).

We all have our different experiences, but for me, its never failed - right from the start of GCII. Just remember to click the small planet icon in each list entry of the target you want, and you should be fine.

Regards
Zy