--- PowerTimer.py.4.1.011	2016-06-03 01:21:07.136405509 +0100
+++ PowerTimer.py	2016-06-03 01:21:07.136405509 +0100
@@ -101,6 +101,18 @@
 			if self.backoff > 1800:
 				self.backoff = 1800
 		self.log(10, "backoff: retry in %d minutes" % (int(self.backoff)/60))
+#
+# If this is the first backoff of a repeat timer remember the original
+# begin/end times, so that we can use *these* when setting up the
+# repeat.
+# A repeat timer (self.repeat != 0) is one set for a given time on a
+# day.
+# A timer that repeats every <n> mins has autosleeprepeat="repeated" and
+# is a different beast, which doesn't need, and mustn't have, this.
+#
+		if self.repeated and not hasattr(self, "real_begin"):
+			self.real_begin = self.begin
+			self.real_end = self.end
 
 	def activate(self):
 		next_state = self.state + 1
@@ -245,12 +257,6 @@
 				if NavigationInstance.instance.RecordTimer.isRecording() or abs(NavigationInstance.instance.RecordTimer.getNextRecordingTime() - time()) <= 900 or abs(NavigationInstance.instance.RecordTimer.getNextZapTime() - time()) <= 900:
 					self.do_backoff()
 					# retry
-# If this is the first backoff of a repeating timer remember the original
-# begin/end times, so that we can use *these* when setting up the repeat.
-#
-					if self.repeated and not hasattr(self, "real_begin"):
-						self.real_begin = self.begin
-						self.real_end = self.end
 					self.begin = time() + self.backoff
 					if self.end <= self.begin:
 						self.end = self.begin
@@ -416,6 +422,9 @@
 				if hasattr(w, "real_begin"):
 					w.begin = w.real_begin
 					w.end = w.real_end
+# Now remove the temporary holding attributes...
+					del w.real_begin
+					del w.real_end
 				w.processRepeated()
 				w.state = PowerTimerEntry.StateWaiting
 				self.addTimerEntry(w)