I think that i found the solution for that problem.
I opened text file settings.txt in this location:
C:\Documents and Settings\Administrator\Application Data\flare\config
and changed the value of default render device to sdl (default value was set to sdl_hardware)
renderer=sdl
after that i launched the game, and get the window Flare appears to already be runnig. I click Reset and game now works for me.
My specificications:
Windows XP 32 bit
CPU: Pentium 4 2.8 GHz
GPU: Ati Radeon 9200
I hope that this helps .