diff --git a/.idea/misc.xml b/.idea/misc.xml
index 6faa303..47eabe0 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -24,7 +24,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" project-jdk-name="JDK" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="JDK" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/java/us/spotco/malwarescanner/Database.java b/app/src/main/java/us/spotco/malwarescanner/Database.java
index ecc7629..917142f 100644
--- a/app/src/main/java/us/spotco/malwarescanner/Database.java
+++ b/app/src/main/java/us/spotco/malwarescanner/Database.java
@@ -49,6 +49,10 @@ public class Database {
     }
 
     public static void loadDatabase(ArrayList<SignatureDatabase> signatureDatabases) {
+        signaturesMD5 = new HashMap<String, String>();
+        signaturesSHA1 = new HashMap<String, String>();
+        signaturesSHA256 = new HashMap<String, String>();
+        System.gc();
         for (SignatureDatabase database : signatureDatabases) {
             File databaseLocation = new File(databasePath + "/" + database.getName());
             if (databaseLocation.exists()) {
@@ -81,6 +85,7 @@ public class Database {
                 }
             }
         }
+        System.gc();
     }
 
     public static String checkInDatabase(String hash) {
diff --git a/app/src/main/java/us/spotco/malwarescanner/MalwareScanner.java b/app/src/main/java/us/spotco/malwarescanner/MalwareScanner.java
index 421d304..44250a0 100644
--- a/app/src/main/java/us/spotco/malwarescanner/MalwareScanner.java
+++ b/app/src/main/java/us/spotco/malwarescanner/MalwareScanner.java
@@ -92,7 +92,7 @@ public class MalwareScanner {
             Database.loadDatabase(Database.signatureDatabases);
             publishProgress("Loaded " + Database.signaturesMD5.size() + " MD5 signatures");
             publishProgress("Loaded " + Database.signaturesSHA1.size() + " SHA-1 signatures");
-            publishProgress("Loaded " + Database.signaturesSHA256.size() + " SHA-256 signatures");
+            publishProgress("Loaded " + Database.signaturesSHA256.size() + " SHA-256 signatures\n");
 
             if (Database.signaturesMD5.size() > 0) {
                 for (File file : filesToScan) {
@@ -105,9 +105,9 @@ public class MalwareScanner {
                         publishProgress(file.getValue() + " detected as " + result);
                     }
                 }
-                publishProgress("Checked all MD5 hashes against signature databases");
+                publishProgress("Checked all MD5 hashes against signature databases\n");
             } else {
-                publishProgress("No MD5 signatures available");
+                publishProgress("No MD5 signatures available\n");
             }
 
             if (Database.signaturesSHA1.size() > 0) {
@@ -121,9 +121,9 @@ public class MalwareScanner {
                         publishProgress(file.getValue() + " detected as " + result);
                     }
                 }
-                publishProgress("Checked all SHA-1 hashes against signature databases");
+                publishProgress("Checked all SHA-1 hashes against signature databases\n");
             } else {
-                publishProgress("No SHA-1 signatures available");
+                publishProgress("No SHA-1 signatures available\n");
             }
 
             if (Database.signaturesSHA256.size() > 0) {
@@ -137,11 +137,13 @@ public class MalwareScanner {
                         publishProgress(file.getValue() + " detected as " + result);
                     }
                 }
-                publishProgress("Checked all SHA-256 hashes against signature databases");
+                publishProgress("Checked all SHA-256 hashes against signature databases\n");
             } else {
-                publishProgress("No SHA-256 signatures available");
+                publishProgress("No SHA-256 signatures available\n");
             }
 
+            System.gc();
+
             return null;
         }
 
@@ -152,7 +154,7 @@ public class MalwareScanner {
 
         @Override
         protected void onPostExecute(String result) {
-            log.append("Scan complete!\n");
+            log.append("Scan complete!\n\n\n\n\n");
         }
 
     }