Before upgrading my "video adapter" from Intel GMA X3000 (onboard) to GF9600GT echoes and DUOtris worked just fine, now both crash (they go full screen, flash a black screen at me and return to windows without any messages).
DUO and mono work just fine

Windows XP Pro SP2
Intel Core 2 Duo
Language - Russian
Physical memory 2 048 MB
ASUS GeForce 9600 GT 512MB,
Video Driver Version 174.74 (latest)
I upgraded only the video card, everything worked with X3000

Debug info for echoes
[COMMON]
PathToEXE=D:\GAMES2\echoes\CrashOn_04_25_08.txt
[CEXE]
m_dwRuntimeErrorDWORD=0
m_dwRuntimeErrorLineDWORD=0
Couldn't find any dumps in DUOtris' folders.
See you next nVidia driver update, I guess

P.S. Thank you for the games, love them all, especially echoes