diff --git a/BUGS b/BUGS
index 8390aa8..96a8278 100644
--- a/BUGS
+++ b/BUGS
@@ -1,5 +1,9 @@
 === OUSTANDING BUGS ===
 
+2008/04/02:
+regex-replace has some issues. valid regular expressions that should find
+something don't. 
+
 2007/09/14:
 known deficiencies:
   1. a single action (global search and replace) may produce N actions that
@@ -18,6 +22,7 @@ known deficiencies:
 sometimes you don't get search-as-you-type (and have to hit C-s an extra time
 to see anything).
 * possibly fixed (2007/09/26)
+* definitely not fixed (2008/04/02)
 
 2007/07/12:
 sometimes searching seems to save the wrong cursor position, or not overwrite
diff --git a/MODES b/MODES
index e1717c3..d90a3a3 100644
--- a/MODES
+++ b/MODES
@@ -77,6 +77,11 @@ than inserting 4 spaces (which is the default), it will instead determine the
 correct "tab depth" for this line of the buffer, and insert/remove spaces from
 the beginning of the line in order to reach the correct number.
 
+[NOTE: 4 spaces is the norm; some modes default to 2. The Mode.tabwidth variable
+determines this, and can be customized either during startup, or via the methods
+set-tab-width (to set the width for a single buffer) and set-mode-tab-width (to
+set the default width for all buffers using the given mode).]
+
 To implement this, you must create a Tabber class and assign it to self.tabber
 in the mode. At a minimum, a tabber must support the following methods: