I've gone and put a "REMarks" thingy ( ' ) in front of every line in my script. I will now
slowly strip away the REMs to enable one star system at a time.*
When I use the map to jump, I always:
- Left-click on the icon in "Top" view.
- Left-click again in "Side" view (I renamed it "Side" in the Text file).
- Right-click one more time, in "Top" view.
I then check to make sure the waypoint is centered on the icon ... in
both views. Which is what I did ... while autopilot was still engaged (I used it to get from Sol to Alpha ... took about ten minutes). And landed right in the middle of where Alpha Centauri showed (icon-wise) ... but nothing showed outside my cockpit.
* This is probably my last-ditch effort. If it doesn't work, I'm stuck.
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Update: Okay, I enabled the Sol system and the star in Alpha Centauri. Everything shows in Sol and the star works as advertised (so far) in Alpha.

One odd thing ... in Sol, when I cursor over the Sun, I get both a gray coordinate readout (normal) and a purple readout, as follows --
XYZ: 0K,0K,0K
Sec: 0,0,0
Dest: 0,0,0
[ ]
Update No.2: Okay, I think I might've solved the "odd purple" problem. Turns out, the "universedata" file is really nit-picky about spaces. And not just the space between planets and stars. It also doesn't like it when you indent a line in the file, even if you only indent by one space. Ergo, I suspect the purple was the file crying out, saying "You've defined a gate ... but you didn't do it properly!"

Sure enough, on checking for the gate in Alpha, it only shows up if the typo is corrected.
[Edited on 7-26-2009 by Marvin]