For your texture problem, do the following:
1) Some graphics cards have problems with texture compression. If you experience problems loading the game disable texture compression by doing the following:
-Open the file data/config/r3dopengl.cfg in a text editor.
-Locate the following line and delete the leading semicolon:
;Video.OpenGL.UseExtension.GL_ARB_texture_compression = false
should be:
Video.OpenGL.UseExtension.GL_ARB_texture_compression = false
-Save the file (be sure the file is saved as text only).
That should do the trick. It helped me with the same problem
Have fun!