created an attachment (id=166914)
screenshot

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

build number:
2.6.0.v20100504-0630

steps to reproduce:
1. new a chart, go to format chart->chart area.
2. click background and click pattern.
3. navigate the dialogue using keyboard.

expected result:
all the area can be accessed by keyboard.

actual result:
the contents in the pattern pane can not be accessed. 

error log:
n/a
now the contents in "pattern image dialog" are accessible for keyboard-only users.
verified in build (2.6.0.v20100520-0630), closed.