created an attachment (id=160155)
report design

description:
  arithmeticexception was thrown out while exporting report attached to doc format.

test build:
birt2.6.0 v20100225-0631

step to reproduce:

1. use the report attached
2. preview it
3. export report content to doc format

error log:
caused by: java.lang.arithmeticexception: / by zero
	at org.eclipse.birt.report.engine.emitter.emitterutil.resizetablecolumn(emitterutil.java:571)
	at org.eclipse.birt.report.engine.emitter.wpml.abstractemitterimpl.computetblcolumnwidths(abstractemitterimpl.java:1189)
	at org.eclipse.birt.report.engine.emitter.wpml.abstractemitterimpl.starttable(abstractemitterimpl.java:532)
	at org.eclipse.birt.report.engine.emitter.wpml.docemitter.starttable(docemitter.java:362)
	at org.eclipse.birt.report.engine.layout.html.htmltablelayoutemitter.starttable(htmltablelayoutemitter.java:384)
	at org.eclipse.birt.report.engine.emitter.contentemitterutil.startcontent(contentemitterutil.java:50)
	at org.eclipse.birt.report.engine.layout.html.buffer.dummypagebuffer.startcontainer(dummypagebuffer.java:106)
	at org.eclipse.birt.report.engine.layout.html.htmltablelm.start(htmltablelm.java:143)
	at org.eclipse.birt.report.engine.layout.html.htmlabstractlm.layout(htmlabstractlm.java:139)
fixed the problem.
verified in v20100308-0630