Index: code/renderer/tr_init.c
===================================================================
--- code/renderer/tr_init.c	(revision 2302)
+++ code/renderer/tr_init.c	(working copy)
@@ -877,6 +877,17 @@
 	qglEnable( GL_SCISSOR_TEST );
 	qglDisable( GL_CULL_FACE );
 	qglDisable( GL_BLEND );
+
+
+	qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
+	qglClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+	qglClearDepth(1.0);
+
+	qglDrawBuffer(GL_FRONT);
+	qglClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_ACCUM_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
+
+	qglDrawBuffer(GL_BACK);
+	qglClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT|GL_ACCUM_BUFFER_BIT|GL_STENCIL_BUFFER_BIT);
 }