diff --git a/doc/v3_vsync b/doc/v3_vsync
new file mode 100644
index 000000000..ed6af571e
--- /dev/null
+++ b/doc/v3_vsync
@@ -0,0 +1,4 @@
+<some_dude> declare -x FX_GLIDE_SWAPINTERVAL=0 <-- DISABLES VSYNC FOR VIDEO CARDS
+<some_dude> KEEP THAT somewhere
+<some_dude> ;)
+<some_dude> for v3 cards