Was successfully run Left4Dead2 before, but now log dropping
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Please configure the application to use double buffering (1 back buffer) if possible.
err:d3d:context_create wglSwapIntervalEXT failed to set swap interval 1 for context 0x18bfa0, last error 0x591
How may i force software to use double buffering ?
EDIT:
Seems double buffering request does not lead to crashes, because checked same instance of game on other PC and same error exit, but game runs fine.