I am getting a CTD after about 1 minute in Beta 19. I only tested two aircraft, P-51D and Mosquito, but it behaved identically. This always occurs.
DXdiag data:
Machine name: KARNAK
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 1 (2600.xpsp2.030422-1633)
Language: English (Regional Setting: English)
System Manufacturer: NVIDIA Corporation.
System Model: nFORCE-MCP
BIOS: Award Modular BIOS v6.00PG
Processor: AMD Athlon(tm) XP 1800+, MMX, 3DNow, ~1.5GHz
Memory: 512MB RAM
Page File: 149MB used, 1100MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0b (4.09.0000.0902)
DX Setup Parameters: Not found
DxDiag Version: 5.03.0001.0902 32bit Unicode
Card name: NVIDIA GeForce4 Ti 4600
Manufacturer: NVIDIA
Chip type: GeForce4 Ti 4600
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_0250&SUBSYS_2890107D&REV_A3
Display Memory: 128.0 MB
Current Mode: 1280 x 1024 (32 bit) (85Hz)
Monitor: Plug and Play Monitor
Monitor Max Res: 1600,1200
Driver Name: nv4_disp.dll
Driver Version: 6.14.0010.5664 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 3/3/2004 10:29:00, 4256896 bytes
Description: SB Live! Audio [C000]
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: PCI\VEN_1102&DEV_0002&SUBSYS_80611102&REV_07
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: ctaud2k.sys
Driver Version: 5.12.0001.0252 (English)
Driver Attributes: Final Retail