diff --git a/backend/plustek-usbdevs.c b/backend/plustek-usbdevs.c
index dd28c13dd..852134379 100644
--- a/backend/plustek-usbdevs.c
+++ b/backend/plustek-usbdevs.c
@@ -65,7 +65,9 @@
  * - 0.51 - tweaked CanoScan N1220U settings again
  *        - added settings for Syscan Travelscan 662
  *        - tweaked settings for Bearpaw 1200
- *        - fixed Motorsettings for LiDE20/30
+ *        - fixed CanoScan LiDE20 settings, cause of various reports, seems
+ *          Canon has built-in different motortypes
+ *        - also fixed Motorsettings for LiDE30
  *
  * <hr>
  * This file is part of the SANE package.
diff --git a/doc/plustek/Plustek-USB-TODO.txt b/doc/plustek/Plustek-USB-TODO.txt
index 7a70f4882..1e9cf229c 100644
--- a/doc/plustek/Plustek-USB-TODO.txt
+++ b/doc/plustek/Plustek-USB-TODO.txt
@@ -1,8 +1,9 @@
-Plustek-USB-TODO.txt (2004-07-26) Gerhard J�er <gerhard@gjaeger.de>
-====================================================================
+Plustek-USB-TODO.txt (2006-07-28) Gerhard Jaeger <gerhard@gjaeger.de>
+=====================================================================
 
 TODO (in general):
 - more documentation/comments for the different functions
+- replace mclk_fast stuff and use instead values from 75DPI grayscale
 
 
 KNOWN BUGS/Limitations:
@@ -11,8 +12,10 @@ Model             Description                           Workaround
 ------------------------------------------------------------------------------
 
 HP 2100c          Straight Line Bug                     none
+Bearpaw1200       works only once                       restart backend each time
 All with TPA      Negative Scanning quality bad         none
 CIS devices       Skip calibration does not work        none
+All               problems on ARM and XScale            none
 
 ********************************* DONE ***************************************
 
diff --git a/doc/plustek/Plustek-USB.changes b/doc/plustek/Plustek-USB.changes
index 643817191..73c1f05b0 100644
--- a/doc/plustek/Plustek-USB.changes
+++ b/doc/plustek/Plustek-USB.changes
@@ -1,4 +1,4 @@
-Plustek.changes - Gerhard Jäger <gerhard@gjaeger.de>
+Plustek.changes - Gerhard J�er <gerhard@gjaeger.de>
 ====================================================
 
 Note: All other not mentioned builds have never been released.
@@ -6,7 +6,10 @@ Note: All other not mentioned builds have never been released.
 V 0.51-13 (2006-08-09)
 ----------------------
 Changed sane.type to "flatbed scanner" only
-Fixed motorsettings for LiDE20/30
+Fixed motorsettings for LiDE30 (bugreport #303722)
+Fixed LiDE20 settings. Got some reports of non-working devs, although
+my N670U is working fine. Lowered the max speeds and increased the
+MCLK-div for fast movement. (bugreport #303695)
 
 V 0.51-12 (2006-06-30)
 ----------------------