500 Servlet Exception

[Toot]

v5.5.1 on CentOS5 has been running fine for some time now. Onto a mailing created from a copy of a copy and adding another picture component, I get the following error:

Code: Select all

500 Servlet Exception

java.lang.IllegalStateException: forward() not allowed after buffer has
committed.
	at com.caucho.server.webapp.RequestDispatcherImpl.forward(RequestDispatcherImpl.java:139)
	at com.caucho.server.webapp.RequestDispatcherImpl.error(RequestDispatcherImpl.java:113)
	at com.caucho.server.webapp.ErrorPageManager.sendServletError(ErrorPageManager.java:363)
	at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:180)
	at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:229)
	at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:268)
	at com.caucho.server.port.TcpConnection.run(TcpConnection.java:389)
	at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:507)
	at com.caucho.util.ThreadPool.run(ThreadPool.java:433)
	at java.lang.Thread.run(Thread.java:595)

I can upload a different, smaller image but not other, larger images. Presumably this limit isn't set in stone - can anyone tell me what I need to change to get it to work?

Thanks for your help.
T