diff --git a/Classes/Power.m b/Classes/Power.m
index 8a7a8c5..6427ad0 100644
--- a/Classes/Power.m
+++ b/Classes/Power.m
@@ -56,7 +56,9 @@ static void powerSourceChanged(void * refCon)
 }
 
 - (id)init{
-	[super init];
+    if (self = [super init]) {
+        
+    }
 	return self;
 }
 
diff --git a/Classes/smcWrapper.m b/Classes/smcWrapper.m
index 2d7fd31..5ffa2c6 100755
--- a/Classes/smcWrapper.m
+++ b/Classes/smcWrapper.m
@@ -24,8 +24,8 @@
 #import "smcWrapper.h"
 #import <CommonCrypto/CommonDigest.h>
 
-//TODO: This is the smcFanControl 2.4 checksum, it needs to be updated for the next release.
-NSString * const smc_checksum=@"2ea544babe8a58dccc1364c920d473c8";
+//TODO: This is the smcFanControl 2.5ß checksum, it needs to be updated for the next release.
+NSString * const smc_checksum=@"03548c5634bd01315b19c46bf329cceb";
 static NSArray *allSensors = nil;
 
 
@@ -54,6 +54,7 @@ static NSArray *allSensors = nil;
                 c_temp= ((val.bytes[0] * 256 + val.bytes[1]) >> 2)/64;
                 if (c_temp>0) {
                     [[NSUserDefaults standardUserDefaults] setObject:sensor forKey:@"TSensor"];
+                    [[NSUserDefaults standardUserDefaults] synchronize];
                     break;
                 }
         }
@@ -168,13 +169,13 @@ static NSArray *allSensors = nil;
 // The smc binary is given root permissions in FanControl.m with the setRights method.
 +(void)setKey_external:(NSString *)key value:(NSString *)value{
 	NSString *launchPath = [[NSBundle mainBundle]   pathForResource:@"smc" ofType:@""];
-	//first check if it's the right binary (security)
+	NSString *checksum=[smcWrapper createCheckSum:launchPath];
+    //first check if it's the right binary (security)
     // MW: Disabled smc binary checksum. This should be re-enabled in an official release.
-	/*NSString *checksum=[smcWrapper createCheckSum:launchPath];
 	if (![checksum  isEqualToString:smc_checksum]) {
 		NSLog(@"smcFanControl: Security Error: smc-binary is not the distributed one");
 		return;
-	}*/
+	}
     NSArray *argsArray = [NSArray arrayWithObjects: @"-k",key,@"-w",value,nil];
 	NSTask *task;
     task = [[NSTask alloc] init];
diff --git a/Info.plist b/Info.plist
index 49a16df..4854fbd 100644
--- a/Info.plist
+++ b/Info.plist
@@ -7,7 +7,7 @@
 	<key>CFBundleExecutable</key>
 	<string>smcFanControl</string>
 	<key>CFBundleGetInfoString</key>
-	<string>smcFanControl 2.5, Hendrik Holtmann (GPL)</string>
+	<string>smcFanControl 2.5ß, Hendrik Holtmann (GPL)</string>
 	<key>CFBundleIconFile</key>
 	<string>smcfancontrol_v2</string>
 	<key>CFBundleIdentifier</key>
@@ -19,11 +19,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>2.5</string>
+	<string>2.5ß</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>2.5</string>
+	<string>2.5ß</string>
 	<key>LSUIElement</key>
 	<string>1</string>
 	<key>NSHumanReadableCopyright</key>
diff --git a/smcFanControl.xcodeproj/project.xcworkspace/xcuserdata/hendrikh.xcuserdatad/UserInterfaceState.xcuserstate b/smcFanControl.xcodeproj/project.xcworkspace/xcuserdata/hendrikh.xcuserdatad/UserInterfaceState.xcuserstate
index 3d67100..2002a81 100644
Binary files a/smcFanControl.xcodeproj/project.xcworkspace/xcuserdata/hendrikh.xcuserdatad/UserInterfaceState.xcuserstate and b/smcFanControl.xcodeproj/project.xcworkspace/xcuserdata/hendrikh.xcuserdatad/UserInterfaceState.xcuserstate differ