Exception in thread "main" org.openqa.selenium.remote.UnreachableBrowserException:

[RK@V]

Thanks for responding to my request.sorry for the delay?

As i am new to the selenium programming and I am trying to add selenium webdriver in eclipse for that I used selenium-java-2.41.0, and firefox version 21.

But I am getting  below error. can any one tell the solution to this.

Exception in thread "main" org.openqa.selenium.remote.UnreachableBrowserException: Could not start a new session. Possible causes are invalid address of the remote server or browser start-up failure.
Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:33:32'
System info: os.name: 'Windows XP', os.arch: 'x86', os.version: '5.1', java.version: '1.6.0_31'
Driver info: driver.version: FirefoxDriver
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:548)
	at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:216)
	at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:111)
	at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:190)
	at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:183)
	at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:179)
	at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:92)
	at example.Example1.main(Example1.java:11)
Caused by: java.net.SocketException: Connection reset
	at java.net.SocketInputStream.read(Unknown Source)
	at org.apache.http.impl.io.AbstractSessionInputBuffer.fillBuffer(AbstractSessionInputBuffer.java:166)
	at org.apache.http.impl.io.SocketInputBuffer.fillBuffer(SocketInputBuffer.java:90)
	at org.apache.http.impl.io.AbstractSessionInputBuffer.readLine(AbstractSessionInputBuffer.java:281)
	at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:92)
	at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:62)
	at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:254)
	at org.apache.http.impl.AbstractHttpClientConnection.receiveResponseHeader(AbstractHttpClientConnection.java:289)
	at org.apache.http.impl.conn.DefaultClientConnection.receiveResponseHeader(DefaultClientConnection.java:252)
	at org.apache.http.impl.conn.AbstractClientConnAdapter.receiveResponseHeader(AbstractClientConnAdapter.java:219)
	at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:300)
	at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:127)
	at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:712)
	at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:517)
	at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
	at org.openqa.selenium.remote.HttpCommandExecutor.fallBackExecute(HttpCommandExecutor.java:316)
	at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:295)
	at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.execute(NewProfileExtensionConnection.java:133)
	at org.openqa.selenium.firefox.FirefoxDriver$LazyCommandExecutor.execute(FirefoxDriver.java:355)
	at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:527)
	... 7 more

Thanks in advance

RK