In context_acquire(), line 2439 (as of commit 90e3bc5, fetched just now), I'm seeing the line struct wined3d_swapchain *swapchain = device->swapchains[0]; crash because device->swapchains is NULL. This happens in the games Club Paradise and Spa Mania when switching between fullscreen and windowed mode. The platform is Ubuntu Desktop 32-bit 11.04 with the Recommended version of the proprietary NVIDIA driver. Any suggestions as to how I might patch Wine to fix this? Josh