--- a/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/api/sdk/SBSv2Utils.java	Fri Apr 16 14:47:44 2010 -0500
+++ b/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/api/sdk/SBSv2Utils.java	Mon Apr 19 11:06:01 2010 -0500
@@ -61,24 +61,24 @@
 	 */
 	private static Map<String, String> unfilteredSBSv2ConfigNames;
 
-	protected static final String SBS_HOME = "SBS_HOME";
-	protected static String sbsHome;
+	/** Path, to and including the SBS script */
 	protected static IPath sbsPath;
 
 	private static boolean scannedSbsState = false;
 	private static final String sbsScriptName = HostOS.IS_WIN32 ? "sbs.bat" : "sbs"; 
 	
 	/**
-     * Get the path to the SBSv2 bin directory.  This is based on the SBS_HOME environment variable
-     * and may or may not actually exist.
-     * @return absolute path to the bin directory, or null if SBS_HOME is not set
+     * Get the path to the SBSv2 bin directory, not including the sbs executable.  
+     * May or may not actually exist.
+     * @return absolute path to the bin directory, or null if sbs is not found
      */
     public static IPath getSBSBinDirectory() {
-    	String sbsHome = EnvironmentReader.getEnvVar("SBS_HOME"); //$NON-NLS-1$
-    	if (sbsHome != null) {
-    		return new Path(sbsHome).append("bin"); //$NON-NLS-1$
+    	String pathValue = EnvironmentReader.getEnvVar("PATH"); //$NON-NLS-1$
+    	IPath sbs = HostOS.findProgramOnPath(sbsScriptName, pathValue);
+    	if (sbs != null){
+    		sbs = sbs.removeLastSegments(1);
     	}
-    	return null;
+    	return sbs;
     }
 
     /**
@@ -88,10 +88,10 @@
      */
     public static Map<String, String> getUnfilteredSBSv2BuildConfigurations(boolean refreshList) {
     	
-    	if (unfilteredSBSv2ConfigNames == null || refreshList) {
+    	if (unfilteredSBSv2ConfigNames == null || refreshList || unfilteredSBSv2ConfigNames.size() == 0) {
     		unfilteredSBSv2ConfigNames = new HashMap<String, String>();
     		
-        	// parse the xml files in SBS_HOME/lib/config/ to get SBSv2 configs
+        	// parse the xml files in <sbs-install>/lib/config/ to get SBSv2 configs
     		try {
 
     			IPath configPath = getSBSBinDirectory();
@@ -333,22 +333,22 @@
 	 * @return message if error, else null
 	 */
 	public static String scanSBSv2() {
+		if (sbsPath != null){
+			return null;
+		}
 		// do some basic checks
-		sbsHome = System.getenv(SBS_HOME);
-		if (sbsHome == null) {
-			return Messages.getString("SBSv2Utils.DefineSBS_HOMEMessage"); //$NON-NLS-1$
-		}
+		IPath expectedPath = getSBSBinDirectory();
+		if (expectedPath != null) {
+			expectedPath = expectedPath.append(sbsScriptName);
+			if (expectedPath.toFile().exists()) {
+				sbsPath = expectedPath;
+			}
+		} 
 		
-		IPath expectedPath = new Path(sbsHome).append("bin").append(sbsScriptName);
-		if (expectedPath.toFile().exists()) {
-			sbsPath = expectedPath;
-		} else {
-			sbsPath = HostOS.findProgramOnPath(sbsScriptName, null);
-			if (sbsPath == null) {
-				return MessageFormat.format(
-								Messages.getString("SBSv2Utils.CannotFindSBSScriptError"), //$NON-NLS-1$
-								sbsScriptName);
-			}
+		if (sbsPath == null) {
+			return MessageFormat.format(Messages
+					.getString("SBSv2Utils.CannotFindSBSScriptError"), //$NON-NLS-1$
+					sbsScriptName);
 		}
 		
 		return null;

--- a/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/api/sdk/messages.properties	Fri Apr 16 14:47:44 2010 -0500
+++ b/core/com.nokia.carbide.cpp.sdk.core/src/com/nokia/carbide/cpp/internal/api/sdk/messages.properties	Mon Apr 19 11:06:01 2010 -0500
@@ -8,7 +8,6 @@
 \#undef SBSV2\n\
 \n
 
-SBSv2Utils.CannotFindSBSScriptError=Cannot find {0} on the PATH or under $SBS_HOME/bin.  Please verify your SBSv2 installation.
-SBSv2Utils.DefineSBS_HOMEMessage=Please define the SBS_HOME environment (e.g. /path/to/raptor) and add $SBS_HOME/bin to your PATH before running Carbide.
+SBSv2Utils.CannotFindSBSScriptError=Cannot find {0} on the PATH.  Please verify your SBSv2 installation.
 SBVCatalog.SBVLoadError=Error loading/parsing VAR file: {0}
 SBVCatalog.MissingCustomizedPlatform=Variant platform ''{0}'' customizes platform ''{1}'' which cannot be located or parsed.

--- a/core/com.nokia.cpp.utils.core/src/com/nokia/cpp/internal/api/utils/core/HostOS.java	Fri Apr 16 14:47:44 2010 -0500
+++ b/core/com.nokia.cpp.utils.core/src/com/nokia/cpp/internal/api/utils/core/HostOS.java	Mon Apr 19 11:06:01 2010 -0500
@@ -56,8 +56,8 @@
 	/**
 	 * Scan the PATH variable and see if the given binary is visible on
 	 * the PATH that will be used at runtime (with the default environment and overrides).
-	 * @param pathValue the expected Path 
-	 * @param program
+	 * @param program - program name to find on the path
+	 * @param pathValue the value of the path in the system to search on
 	 * @return IPath if program is on PATH, else <code>null</code>
 	 */
 	public static IPath findProgramOnPath(String program, String pathValue) {

--- a/project/com.nokia.carbide.cpp.project.ui/src/com/nokia/carbide/cpp/internal/project/ui/sharedui/BuilderSelectionComposite.java	Fri Apr 16 14:47:44 2010 -0500
+++ b/project/com.nokia.carbide.cpp.project.ui/src/com/nokia/carbide/cpp/internal/project/ui/sharedui/BuilderSelectionComposite.java	Mon Apr 19 11:06:01 2010 -0500
@@ -85,14 +85,9 @@
 
 				IPath sbsBinPath = SBSv2Utils.getSBSBinDirectory();
 				
-				// if SBSv2 is selected, make sure SBS_HOME is defined
+				// if SBSv2 is selected, make sure SBS bin directory exists
 				if (SBSv2Utils.getSBSBinDirectory() == null){
-					status = new Status(Status.ERROR, ProjectUIPlugin.PLUGIN_ID, "SBS_HOME environment variable is not defined. Carbide needs this variable to find the base SBS install.");
-				}
-				
-				// check to see if SBS_HOME directory really exists
-				else if (!sbsBinPath.toFile().exists()){
-					status = new Status(Status.ERROR, ProjectUIPlugin.PLUGIN_ID, "SBS_HOME environment variable path does not exist: " + sbsBinPath.toOSString());
+					status = new Status(Status.ERROR, ProjectUIPlugin.PLUGIN_ID, "The Symbian Build System (sbs) cannot be found on the PATH. Carbide needs a valid SBS installation on the PATH to use the SBSv2 builder.");
 				}
 				
 				// check the raptor version