Got the same problem but checking "Always enumerate devices" doesn't help.
No matter if i install the latest Orbiter2010 Package or the Orbiter2006 P1.
Latest working Simulation was with my "old" GTX 280...but that card screwed up.
Installation Log
Launchpad Preferences
Orbiter Log
**** Orbiter.log
Build Jun 6 2010 [v.100606]
Timer precision: 6.98413e-008 sec
Found 0 joystick(s)
Devices enumerated: 2
Devices accepted: 1
==> RGB Emulation
Module AtlantisConfig.dll .... [Build 100606, API 100606]
Module AtmConfig.dll ......... [Build 100606, API 100606]
Module DGConfigurator.dll .... [Build 100606, API 100606]
**** Creating simulation session
DirectDraw interface OK
Direct3D interface OK
Graphics: Viewport: Fullscreen 1920 x 1080 x 32
Graphics: Hardware T&L capability: No
Graphics: Z-buffer depth: 32 bit
Graphics: Stencil buffer depth: 8 bit
Loading 8816 records from star database
Module Sun.dll ............... [Build 100215, API 100212]
VSOP87(E) Sun: Precision 1e-006, Terms 554/6634
Module Mercury.dll ........... [Build 100215, API 100212]
VSOP87(B) Mercury: Precision 1e-005, Terms 167/7123
Module Venus.dll ............. [Build 100215, API 100212]
Module VenusAtm2006.dll ...... [Build 100606, API 100606]
VSOP87(B) Venus: Precision 1e-005, Terms 79/1710
Module Earth.dll ............. [Build 100215, API 100212]
Module EarthAtmJ71G.dll ...... [Build 100606, API 100606]
VSOP87(B) Earth: Precision 1e-008, Terms 2564/2564
Module Moon.dll .............. [Build 100217, API 100215]
ELP82: Precision 1e-005, Terms 116/829
Module Mars.dll .............. [Build 100215, API 100212]
Module MarsAtm2006.dll ....... [Build 100606, API 100606]
VSOP87(B) Mars: Precision 1e-005, Terms 405/6400
Module Phobos.dll ............ [Build ******, API 060425]
Module Deimos.dll ............ [Build ******, API 060425]
Module Galsat.dll ............ [Build 100217, API 100215]
Module Jupiter.dll ........... [Build 100215, API 100212]
VSOP87(B) Jupiter: Precision 1e-006, Terms 1624/3625
Module Io.dll ................ [Build 100217, API 100215]
Module Europa.dll ............ [Build 100217, API 100215]
Module Ganymede.dll .......... [Build 100217, API 100215]
Module Callisto.dll .......... [Build 100217, API 100215]
Module Satsat.dll ............ [Build 100215, API 100212]
Module Saturn.dll ............ [Build 100215, API 100212]
VSOP87(B) Saturn: Precision 1e-006, Terms 2904/6365
Module Mimas.dll ............. [Build 100215, API 100212]
SATSAT Mimas: Terms 113
Module Enceladus.dll ......... [Build 100215, API 100212]
SATSAT Enceladus: Terms 33
Module Tethys.dll ............ [Build 100215, API 100212]
SATSAT Tethys: Terms 101
Module Dione.dll ............. [Build 100215, API 100212]
SATSAT Dione: Terms 59
Module Rhea.dll .............. [Build 100215, API 100212]
SATSAT Rhea: Terms 68
Module Titan.dll ............. [Build 100215, API 100212]
SATSAT Titan: Terms 100
Module Iapetus.dll ........... [Build 100215, API 100212]
SATSAT Iapetus: Terms 605
Module Uranus.dll ............ [Build 100215, API 100212]
VSOP87(B) Uranus: Precision 1e-006, Terms 1827/5269
Module Miranda.dll ........... [Build ******, API 060425]
Module Ariel.dll ............. [Build ******, API 060425]
Module Umbriel.dll ........... [Build ******, API 060425]
Module Titania.dll ........... [Build ******, API 060425]
Module Oberon.dll ............ [Build ******, API 060425]
Module Neptune.dll ........... [Build 100215, API 100212]
VSOP87(B) Neptune: Precision 1e-006, Terms 391/2024
Finished initialising world
Module Atlantis.dll .......... [Build 100606, API 100606]
Module ShuttleA.dll .......... [Build 100606, API 100606]
Module DeltaGlider.dll ....... [Build 100606, API 100606]
Module LuaInline.dll ......... [Build 100606, API 100606]
Module SolarSail.dll ......... [Build 100606, API 100606]
Module HST.dll ............... [Build 100606, API 100606]
Module ShuttlePB.dll ......... [Build 100606, API 100606]
Finished initialising status
Finished initialising camera
Finished initialising panels
Finished setting up render state
**** Closing simulation session
DxDiag
------------------
System Information
------------------
Time of this report: 7/19/2010, 15:11:47
Machine name: QUAD
Operating System: Windows Vista™ Home Premium (6.0, Build 6002) Service Pack 2 (6002.vistasp2_gdr.090803-2339)
Language: German (Regional Setting: German)
System Manufacturer: System manufacturer
System Model: P5Q
BIOS: BIOS Date: 07/10/08 17:59:24 Ver: 08.00.14
Processor: Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz (4 CPUs), ~2.8GHz
Memory: 4094MB RAM
Page File: 1393MB used, 6967MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
DxDiag Version: 7.00.6002.18107 32bit Unicode
------------
DxDiag Notes
------------
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Sound Tab 3: No problems found.
Input Tab: No problems found.
--------------------
DirectX Debug Levels
--------------------
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)
---------------
Display Devices
---------------
Card name: NVIDIA GeForce GTX 470
Manufacturer: NVIDIA
Chip type: GeForce GTX 470
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_06CD&SUBSYS_079F10DE&REV_A3
Display Memory: 3039 MB
Dedicated Memory: 1248 MB
Shared Memory: 1791 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor: LG W2343(Digital)
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver Version: 8.17.0012.5896 (English)
DDI Version: unknown
BGRA Supported: Yes
Driver Attributes: Final Retail
Driver Date/Size: 7/10/2010 00:38:00, 12471400 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71E3E-458D-11CF-6664-93271DC2C535}
Vendor ID: 0x10DE
Device ID: 0x06CD
SubSys ID: 0x079F10DE
Revision ID: 0x00A3
Revision ID: 0x00A3
Video Accel:
Deinterlace Caps: n/a
DDraw Status: Not Available
D3D Status: Not Available
AGP Status: Not Available