diff --git a/labsw/LOG b/labsw/LOG
index 26e3d59..0bef6ab 100644
--- a/labsw/LOG
+++ b/labsw/LOG
@@ -171,4 +171,14 @@ Pending:
   1) add 10 k in parallel to LED (tested workaround)
   2) disable internal pull-ups and add external pull-ups to IN_*
      and to buttons
-  3) drive opto LEDs from 3.3 V instead of 5 V
+  3) drive opto LEDs from 3.3 V instead of 5 V (NOT ! Regulator
+     can only provide 100 mA, which wouldn't be enough if more than
+     two opto-couplers are active.)
+- labsw occasionally gets some configuration bits wrong. This may be
+  a problem with the power supply or with USB. Consider some or all of
+  the following improvements:
+  - follow SiLab's recommendations for regulator bypassing more closely
+  - enable the VDD monitor to catch brown-outs
+  - add ground areas to shield CPU and USB
+  - add redundancy to EP0 protocol
+  - add bead to relay power, to prevent upsetting the 5 V rail