diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 27249afc..4299eb5d 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -2792,6 +2792,8 @@ Gerald Dachs <vdr@dachsweb.de>
 
 Juergen Lock <vdr-l@jelal.kn-bremen.de>
  for fixing cUnbufferedFile::Seek() in case it is compiled without USE_FADVISE
+ for reporting a problem with EPG scan on systems with only a single DVB device that
+ use software output
 
 Sergiu Dotenco <sergiu.dotenco@googlemail.com>
  for reporting a missing initialization in sDvbSpuRect
diff --git a/HISTORY b/HISTORY
index e4ddf093..e5e33e44 100644
--- a/HISTORY
+++ b/HISTORY
@@ -7052,7 +7052,7 @@ Video Disk Recorder Revision History
 - Fixed handling IDLEPRIORITY in cDvbDevice::ProvidesChannel() (thanks to Frank
   Schmirler).
 
-2012-04-06: Version 1.7.28
+2012-04-07: Version 1.7.28
 
 - Fixed cPixmapMemory::DrawEllipse() for quadrants -1 and -4.
 - Fixed getting the maximum short channel name length in case there are no short names
@@ -7062,3 +7062,5 @@ Video Disk Recorder Revision History
 - Now limiting the number of characters of a channel's (short) name to 16 in the
   schedules menus, to keep that column from getting overly wide in case there is
   a channel with a very long name that has no short name.
+- Fixed EPG scan on systems with only a single DVB device that use software output
+  (reported by Juergen Lock).
diff --git a/eitscan.c b/eitscan.c
index 990518ed..027bf44c 100644
--- a/eitscan.c
+++ b/eitscan.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: eitscan.c 2.6 2012/03/07 14:16:57 kls Exp $
+ * $Id: eitscan.c 2.7 2012/04/07 14:39:28 kls Exp $
  */
 
 #include "eitscan.h"
@@ -148,7 +148,7 @@ void cEITScanner::Process(void)
                       if (Channel) {
                          if (!Channel->Ca() || Channel->Ca() == Device->DeviceNumber() + 1 || Channel->Ca() >= CA_ENCRYPTED_MIN) {
                             if (Device->ProvidesTransponder(Channel)) {
-                               if (!Device->Receiving()) {
+                               if (Device->Priority() < 0) {
                                   bool MaySwitchTransponder = Device->MaySwitchTransponder(Channel);
                                   if (MaySwitchTransponder || Device->ProvidesTransponderExclusively(Channel) && now - lastActivity > Setup.EPGScanTimeout * 3600) {
                                      if (!MaySwitchTransponder) {