Issue at starting UFO-AI 2.5dev at Win7-Prof 64bid

[Arrow768]

Hi, it would be great if you could help my with my start-up Problem:
When I start the game, the console appers for a few seconds, then I get a blackscreen. ALT+TAB, STRG+F4, WIN+D, WIN+L are not working.
The only solution is to force a shutdown, by removing the power.
My Graphic Drivers are up2date.
System-Details:
Proci: Intel i7-2630QM
RAM: 8GM
System-SSD: OCZ Vertex 4 (256GB)
Graphics: Nvidia Gforce GTX460

EDIT: I have uninstalled 2.4 and installe 2.5dev, I have got the same error

[Crystan]

We need more info (output of the console file "ufoconsole.log"):
http://ufoai.org/forum/index.php/topic,3130.0.html

[Arrow768]

Nvidia Driver Version: 301.42
Thats the log file:
2012/09/09 14:15:57
----- network initialization -------
2012/09/09 14:15:57 libcurl/7.25.0 GnuTLS/3.0.17 zlib/1.2.6 libidn/1.24 libssh2/1.4.0 initialized.
2012/09/09 14:15:57
------ server initialization -------
2012/09/09 14:15:57 WARNING: cvar 'sv_maxsoldiersperplayer' out of range (0.000000 < 1.000000)
2012/09/09 14:15:57 added 11 maps to the mapcycle
2012/09/09 14:15:57
----- console initialization -------
2012/09/09 14:15:57 Console initialized.
2012/09/09 14:15:57
------- video initialization -------
2012/09/09 14:15:58 SDL version: 1.2.15
2012/09/09 14:15:58 I: desktop depth: 32bpp
2012/09/09 14:15:58 I: video memory: 0
2012/09/09 14:15:58 I: Available resolutions: 1920x1080 1680x1050 1600x1024 1600x900 1366x768 1360x768 1280x1024 1280x960 1280x800 1280x768 1280x720 1152x864 1024x768 800x600 720x576 720x480 640x480 (17)
2012/09/09 14:15:58 I: video driver: windib
2012/09/09 14:15:58 I: setting mode -1
2012/09/09 14:15:58 I: set multisample buffers to 0
2012/09/09 14:15:58 I: set swap control to 0