After double clicking the processing.exe icon from the unzipped processing-2.0b3 file, I get the splash screen for about 2 seconds, it goes away, then nothing.

Following the directions from processing.org, I then launched from the command line with switches.  The log file contains:


CmdLine:    C:\Program Files\processing-2.0b3\processing.exe --l4j-debug
WOW64:        yes
Working dir:    C:\Program Files\processing-2.0b3\.
Bundled JRE:    java
Check launcher:    C:\Program Files\processing-2.0b3\java\bin\javaw.exe (OK)
Substitute:    EXEDIR = C:\Program Files\processing-2.0b3
Add classpath:    lib\pde.jar
Add classpath:    core\library\core.jar
Add classpath:    lib\jna.jar
Add classpath:    lib\ecj.jar
Add classpath:    lib\antlr.jar
Add classpath:    lib\ant.jar
Add classpath:    lib\ant-launcher.jar
Add classpath:    C:\Program Files\processing-2.0b3\java\lib\tools.jar
Launcher:    C:\Program Files\processing-2.0b3\java\bin\javaw.exe
Launcher args:    -classpath "lib;lib\pde.jar;core\library\core.jar;lib\jna.jar;lib\ecj.jar;lib\antlr.jar;lib\ant.jar;lib\ant-launcher.jar;C:\Program Files\processing-2.0b3\java\lib\tools.jar" processing.app.Base
Args length:    194/32768 chars
Exit code:    0

This is on a 64-bit Dell Latitude E6420 running Windows 7 Pro. 

I do not have a folder users/bbrown/Apps from which to delete preferences.  The processing folder is in C:\Program Files

java -version
reports
java version "1.7.0_05"
...

And now what?