title: Selenium RC sending blank screenshots through (winxp/winserver)
body: <p>I'm trying to set up my virtual (xen) win xp instances, a dedicated windows server, and a dedicated windows xp desktop pc for web app UI testing, using selenium-rc and the selenium PHP API from pear (the php script running the tests sits on its app server, on the same local network as the remote-controlled windowses).</p>
  
  <p>Everything has worked out great so far, except i am unable to get a screenshot from selenium RC - they are <strong>all blank</strong> (gray) after base64_decode(); (without that, they dont even open). </p>
  
  <p>Despite os x preview displays them as gray, i'm pretty sure they are actually transparent or have some kind of other corruption because Photoshop wont open them at all. (and they weigh 0.7k) The unix "file" command however recognizes them correctly as "PNG image, 1440 x 900, 8-bit/color RGB, non-interlaced" - 1440 x 900 is the resolution of my Mac, connected to the windows systems through remote desktop. </p>
  
  <p>I'm running the selenium rc directly (ie java -jar selenium-server.jar), not as a service. The symptoms are the same accross all my windows test systems.</p>
  
  <p>My Selenium version is 1.0.1, here's the snippet that tries to get the screenshot:</p>
  
  <pre>
  $this->selenium->windowMaximize();
  $screenshot = $this->selenium->captureScreenshotToString();
  </pre>
  
  <p>I'm using the latest Testing_Selenium pear package.
  I realize there is a question here dealing with a similar issue, but i'm not using a service wrapper nor i can afford to introduce this complexity (but do let me know if you think that's a mistake)</p>
  
  <p>thanks &amp; regards,
  Andras</p>
  
  <p>ps: i'm cross posting this to several forums in a desperate attempt to get some imput - apologies if that upsets you :-)</p>
  
  <p>edit: selenium rc console says</p>
  
  <p>16:38:24.562 INFO - Got result: [base64 encoded PNG] on session a5304a287eb24402
  8c8c843b294bf98f
  java.net.SocketException: Software caused connection abort: socket write error
          at java.net.SocketOutputStream.socketWrite0(Native Method)
          at java.net.SocketOutputStream.socketWrite(Unknown Source)
          at java.net.SocketOutputStream.write(Unknown Source)
          at org.mortbay.http.ChunkingOutputStream.bypassWrite(ChunkingOutputStrea
  m.java:151)
          at org.mortbay.http.BufferedOutputStream.write(BufferedOutputStream.java
  :142)
          at org.mortbay.http.HttpOutputStream.write(HttpOutputStream.java:423)
          at org.mortbay.http.HttpOutputStream.write(HttpOutputStream.java:414)
          at org.openqa.selenium.server.SeleniumDriverResourceHandler.handleComman
  dRequest(SeleniumDriverResourceHandler.java:370)
          at org.openqa.selenium.server.SeleniumDriverResourceHandler.handle(Selen
  iumDriverResourceHandler.java:125)
          at org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
          at org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
          at org.mortbay.http.HttpServer.service(HttpServer.java:909)
          at org.mortbay.http.HttpConnection.service(HttpConnection.java:820)
          at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:986)
          at org.mortbay.http.HttpConnection.handle(HttpConnection.java:837)
          at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:
  245)
          at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
          at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)</p>
  
  <p>for all screen captures.</p>