created an attachment (id=166912)
screenshot

description:
the contents of "group and sorting" dialogue are in a mess.

build number:
2.6.0.v20100504-0630

steps to reproduce:
1. run
/org.eclipse.birt.chart.examples/src/org/eclipse/birt/chart/examples/builder/chartwizardlauncher.java
2. in select data tab, click "edit group and sorting" button.

expected result:
the contents are well arranged.

actual result:
see the screenshot.

error log:
n/a
fixed. add a dummy label to replace the expression button.
verified in build (2.6.0.v20100512-0630), closed.