Index: Slim/Utils/Prefs.pm
===================================================================
--- Slim/Utils/Prefs.pm	(revision 4084)
+++ Slim/Utils/Prefs.pm	(working copy)
@@ -648,6 +648,18 @@
 				}
 
 				$prefs{$key}{$ind} = $value;
+			} elsif ( $ind =~ /\D/ ) {
+				# Setting hash pref from an existing scalar pref
+				my $old = $prefs{$key};
+				CORE::delete $prefs{$key};
+				$prefs{$key}{'0'} = $old;
+				$prefs{$key}{$ind} = $value;
+			} else {
+				# Setting array pref from an existing pref
+				my $old = $prefs{$key};
+				CORE::delete $prefs{$key};
+				$prefs{$key}[0] = $old;
+				$prefs{$key}[$ind] = $value;
 			}
 		} elsif ( $ind =~ /\D/ ) {
 			# Setting hash pref where no keys currently exist
@@ -675,8 +687,10 @@
 	onChange($key, $value, $ind);
 
 	# must mark $ind as defined or indexed prefs cause an error in this msg
-	if (defined $ind) {
+	if (defined $ind && ref $prefs{$key} eq 'ARRAY') {
 		$::d_prefs && msg("Setting prefs $key $ind equal to " . ((defined $prefs{$key}[$ind]) ? $prefs{$key}[$ind] : "undefined") . "\n");
+	} elsif (defined $ind && ref $prefs{$key} eq 'HASH') {
+		$::d_prefs && msg("Setting prefs $key $ind equal to " . ((defined $prefs{$key}{$ind}) ? $prefs{$key}{$ind} : "undefined") . "\n");
 	} else {
 		$::d_prefs && msg("Setting prefs $key equal to " . ((defined $prefs{$key}) ? $prefs{$key} : "undefined") . "\n");
 	}