With dgvoodoo wrapper, are you sure you set all the options as in my previous link? The latest dgvoodoo has the option to use 64MB emulated VRAM instead of 2/4 MB without video corruption, which makes it work faster, and also another option on the DirectX 9 tab (3rd, hidden, see previous post/link) which helps with sun in Red Baron. But the settings in the picture posted in the page (click on the image to see it bigger) must be followed - use 4MB option for RB, select 64MB VRAM, right click at the right of second tab, select option to show 3rd (hidden) DirectX tab and so on. I am not playing RB now, granted, but when i played, with those settings and an older video card (NVidia 7600 GS and iirc even a 5200 one before), it made a huge difference, and it had none of the problems of the OpenGlide wrappers.