something very strange happens recurrently everytime you follow these correct steps...
Stellarium version is 0.12.0, 64 bit in Windows 7.
the sequence that shows the bug is:
- execute Stellarium
- press keys "g", "a", "f" and "q" in order to have a "clear" sky without ground, atmosphere, fog and cardinal points
- F4 to open View window
- Absolute value: change its value to 0.0 clicking on the down arrow
voilà!
a strange "phantom" appears behind the View window: this strange image moves around if you click and drag the mouse. sometimes the "correct" sky shows, without stars and with only the Milky Way and the Sun.
If you close the View Window, this phantom disappears, but opening another window it appears again: this phantom image is a distorted representation of the opened window, as you can easily see.
this is my log.txt file
2013-02-22T22:42:13
Windows 7
Compiled using MinGW GCC 4.6.1
Qt runtime version: 4.8.2
Qt compilation version: 4.8.2
Addressing mode: 64-bit
Total memory: 4078 MB (unreliable)
Total virtual memory: 8388607 MB (unreliable)
Physical memory in use: 41%
Processor speed: 2793 MHz
Processor name: Intel(R) Core(TM) i5-2300 CPU @ 2.80GHz
Processor speed: 2793 MHz
Processor name: Intel(R) Core(TM) i5-2300 CPU @ 2.80GHz
Processor speed: 2793 MHz
Processor name: Intel(R) Core(TM) i5-2300 CPU @ 2.80GHz
Processor speed: 2793 MHz
Processor name: Intel(R) Core(TM) i5-2300 CPU @ 2.80GHz
C:\Program Files\Stellarium\stellarium.exe
-------------------------------------------------------
[ This is Stellarium 0.12.0 - http://www.stellarium.org ]
[ Copyright (C) 2000-2013 Fabien Chereau et al ]
-------------------------------------------------------
Writing log file to: "C:/Users/packard-627009/AppData/Roaming/Stellarium/log.txt"
File search paths:
0 . "C:\Users\packard-627009\AppData\Roaming\Stellarium"
1 . "."
Config file is: "C:\Users\packard-627009\AppData\Roaming\Stellarium/config.ini"
Going to initialize the OpenGL 2 renderer
OpenGL supported version: "3.3.0"
Qt GL paint engine is: "OpenGL2"
GL vendor is "NVIDIA Corporation"
GL renderer is "GeForce 405/PCIe/SSE2"
Log of the compilation of builtin shader " plainShader " : "Built successfully"
Log of the compilation of builtin shader " colorShader " : "Built successfully"
Log of the compilation of builtin shader " textureShader " : "Built successfully"
Log of the compilation of builtin shader " colorTextureShader " : "Built successfully"
Cache directory is: "C:\Users\packard-627009\AppData\Local\stellarium\stellarium\cache"
Sky language is "en"
Application language is "en"
Loading Solar System data ...
Loaded 74 / 74 planet orbits from "C:\Users\packard-627009\AppData\Roaming\Stellarium/data/ssystem.ini"
Loading star data ...
"Loading "./stars/default/stars_0_0v0_1.cat": 0_0v0_1; 5013"
"Loading "./stars/default/stars_1_0v0_1.cat": 1_0v0_1; 21999"
"Loading "./stars/default/stars_2_0v0_1.cat": 2_0v0_1; 151416"
"Loading "./stars/default/stars_3_1v0_0.cat": 3_1v0_0; 434064"
"Loading "C:\Users\packard-627009\AppData\Roaming\Stellarium/stars/default/stars_4_1v0_0.cat": 4_1v0_0; 1725497"
"Loading "C:\Users\packard-627009\AppData\Roaming\Stellarium/stars/default/stars_5_2v0_0.cat": 5_2v0_0; 7669011"
"Loading "C:\Users\packard-627009\AppData\Roaming\Stellarium/stars/default/stars_6_2v0_0.cat": 6_2v0_0; 26615233"
"Loading "C:\Users\packard-627009\AppData\Roaming\Stellarium/stars/default/stars_7_2v0_0.cat": 7_2v0_0; 57826266"
"Loading "C:\Users\packard-627009\AppData\Roaming\Stellarium/stars/default/stars_8_2v0_0.cat": 8_2v0_0; 116923084"
Finished loading star catalogue data, max_geodesic_level: 8
navigation/preset_sky_time is a double - treating as jday: 2.45151e+06
Loaded 10051 NGC records
Loading NGC name data ...
Loaded 288 / 288 NGC name records successfully
Loading star names from "./skycultures/western/star_names.fab"
Loaded 230 / 230 common star names
Loading star names from "./stars/default/name.fab"
Loaded 3215 / 4359 scientific star names
Loaded 88 / 88 constellation records successfully for culture "western"
Loaded 85 / 85 constellation art records successfully for culture "western"
Loaded 89 / 89 constellation names
Loading constellation boundary data ...
Loaded 782 constellation boundary segments
Not using any viewport effect
Creating GUI ...
Loading shortcuts...
Loaded plugin "AngleMeasure" .
AngleMeasure plugin - press control-A to toggle angle measure mode
Loaded plugin "CompassMarks" .
CompassMarks plugin - press control-C to toggle compass marks
Loaded plugin "SolarSystemEditor" .
Using the ssystem.ini file that already exists in the user directory...
Loaded plugin "TimeZoneConfiguration" .
Simple planet shader build log: "Built successfully"
Shadow planet shader build log: "Built successfully"
Using vertex shader for atmosphere rendering.
Atmosphere shader build log: "Built successfully"
Build log after adding a Mat4d transform shader: "Built successfully"
Build log after adding a stereographic projection shader: "Built successfully"
Unloaded plugin "TimeZoneConfiguration" .
Unloaded plugin "SolarSystemEditor" .
Unloaded plugin "CompassMarks" .
Unloaded plugin "AngleMeasure" .
Downloaded 0 files (0 kbytes) in a session of 190.609 sec (average of 0 kB/s + 0 files from cache (0 kB)).
Confirmed on WinXPsp3/NVidia 8200