Login screen and scrolling problem

Question

Macbook Pro 15" i7 from April 2010 here. Recently installed Lion, and I'm having 2 problems that I can't seem to find an explanation to:
1) Login screen
     At the login screen, the screen brightness slowly goes down until it shuts off completely, then slowly comes back to life.
     This repeats every 15-20 seconds.
2) Scrollpad issue
     While scrolling up and down in my browser, it suddenly, unexpectedly registers a two-finger left/right swipe and the browser goes 'Back'.
     I've -never- had this problem, thats why I doubt its my technique.
I'd appreciate it very much if anyone could shed some light onto these problems.

Answer 1

I'm sorry. The XML file LogMessage_handler.xml
<?xml version="1.0" encoding="UTF-8"?>
<handler-chains xmlns="http://java.sun.com/xml/ns/javaee">
  <handler-chain>
    <handler>
      <handler-name>sk.zsr.zt.supis.extern.LogMessageHandler</handler-name>
      <handler-class>sk.zsr.zt.supis.extern.LogMessageHandler</handler-class>
    </handler>
  </handler-chain>
</handler-chains>
and LogMessageHandler.java
public class LogMessageHandler implements SOAPHandler<SOAPMessageContext> {
     public boolean handleMessage(SOAPMessageContext messageContext) {
          log(messageContext);
          return true;
     @SuppressWarnings("unchecked")
     public Set<QName> getHeaders() {
          return Collections.EMPTY_SET;
     public boolean handleFault(SOAPMessageContext messageContext) {
          return true;
     public void close(MessageContext context) {
     private void log(SOAPMessageContext messageContext) {
          SOAPMessage msg = messageContext.getMessage();
          Logger log = LoggerFactory.getLogger("SOAP");
          try {
               ByteArrayOutputStream out = new ByteArrayOutputStream();
               msg.writeTo(out);
               log.info(out.toString());
          } catch (SOAPException ex) {
               log.error(ex.getLocalizedMessage());
          } catch (IOException ex) {
               log.error(ex.getLocalizedMessage());