500 Servlet Exception

java.lang.IllegalStateException: forward () not allowed after buffer has committed.This only happens on one website and only on one computer in the office. How can I fix it?
[187 byte] By [knluckymea] at [2007-11-26 16:53:18]
# 1
Did you not read what Saish posted on this topic that you replied to: http://forum.java.sun.com/thread.jspa?threadID=676419&tstart=0
zadoka at 2007-7-8 23:20:58 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...
# 2
how can I fix the problem and print my tax return
shorty5a at 2007-7-8 23:20:58 > top of Java-index,Developer Tools,Debugging and Profiling Tool APIs...