I am experiencing the same problem now. Just received my LCM today, downloaded setup (tried second time with beta) and all the same: Visualizer and diagnostics runs just fine, but Airspace shows up in the task manager for a split second as two tasks with the same name, then disappears.
I have run the diag command line and this is where it fails:
C:\Program Files (x86)\Leap Motion\Airspace>Airspace.exe --enable-logging --skip
-gpu-data-loading
C:\Program Files (x86)\Leap Motion\Airspace>[7384:0823/165211:WARNING:shell_main
_delegate.cc(215)] missing file: C:\Program Files (x86)\Leap Motion\Airspace\loc
ale\de-DE.pak locale: de-DE
[7384:0823/165211:INFO:breakpad_win.cc(1067)] Initialized crash dump in C:\Users
\SCHEUN~1\AppData\Local\Temp\
[5468:0823/165211:WARNING:shell_main_delegate.cc(215)] missing file: C:\Program
Files (x86)\Leap Motion\Airspace\locale\de-DE.pak locale: de-DE
[5468:0823/165211:INFO:breakpad_win.cc(1067)] Initialized crash dump in C:\Users
\SCHEUN~1\AppData\Local\Temp\
[7384:0823/165212:INFO:simple_index_file.cc(397)] Simple Cache Index is being re
stored from disk.
[7384:0823/165213:INFO:CONSOLE(29)] ""LOG (3004): Setting app crash dump dir: C:
\Users\All Users\Leap Motion (at eval (file:///C:/Program%20Files%20(x86)/Lea
p%20Motion/Airspace/index.html:61:15))"", source: C:\Program Files (x86)\Leap Mo
tion\Airspace\app\utils\logging.js (29)
[7384:0823/165213:INFO:CONSOLE(29)] ""LOG (3043): Starting Airspace Home v1.2.2-
3d377b on node-webkit v0.8.7-rc4 (at eval (file:///C:/Program%20Files%20(x86)/Le
ap%20Motion/Airspace/index.html:66:15))"", source: C:\Program Files (x86)\Leap M
otion\Airspace\app\utils\logging.js (29)
[7384:0823/165213:INFO:CONSOLE(29)] ""LOG (3175): ~~~ Bootstrap Step: initialize
GoogleAnalytics ~~~ (at Array.eval (C:\Program Files (x86)\Leap Motion\Airsp
ace\app\startup.js:57:15))"", source: C:\Program Files (x86)\Leap Motion\Airsp
ace\app\utils\logging.js (29)
[7384:0823/165213:INFO:CONSOLE(29)] ""LOG (3190): Tracking Google Analytics even
t: launched (at Object.eval [as trackOpen] (C:\Program Files (x86)\Leap Motion
\Airspace\app\utils\ga.js:65:19))"", source: C:\Program Files (x86)\Leap Mot
ion\Airspace\app\utils\logging.js (29)
[7384:0823/165213:INFO:CONSOLE(72)] "Uncaught TypeError: Cannot call method 'pag
eview' of null", source: C:\Program Files (x86)\Leap Motion\Airspace\app\utils\g
a.js (72)
[7384:0823/165213:INFO:CONSOLE(29)] ""ERROR (3194): Uncaught exception: Error: E
NOENT, open 'C:\Program Files (x86)\Leap Motion\Airspace\Airspace\log.txt'
(at process.eval (C:\Program Files (x86)\Leap Motion\Airspace\app\airspace.
js:20:11))"", source: C:\Program Files (x86)\Leap Motion\Airspace\app\utils\logg
ing.js (29)
[7384:0823/165213:INFO:CONSOLE(29)] ""LOG (3195): Tracking Google Analytics even
t: exit (at process.eval (C:\Program Files (x86)\Leap Motion\Airspace\app\u
tils\ga.js:65:19))"", source: C:\Program Files (x86)\Leap Motion\Airspace\app\u
tils\logging.js (29)
C:\Program Files (x86)\Leap Motion\Airspace\app\utils\ga.js:72
return visitor.pageview(page_url, page_title, page_title).send();
^
TypeError: Cannot call method 'pageview' of null
at process.eval (C:\Program Files (x86)\Leap Motion\Airspace\app\utils\ga.js
:72:26)
at process.EventEmitter.emit (events.js:117:20)
at process.exit (node.js:660:17)
at process.eval (C:\Program Files (x86)\Leap Motion\Airspace\app\airspace.js
:30:13)
at process.EventEmitter.emit (events.js:117:20)
at process._fatalException (node.js:208:26)
OS is Win7/64 german locale.
Cheers,
Andreas