Steps to reproduce

1. run attached zul with IE 10
2. move scrollbar to the rightmost position.
   So non-frozen columns disappear
3. move scrollbar back to the leftmost position

Actual result

non-frozen columns still disappear

Debug information

• chrome & firefox do not have this issue.
• enclose the Grid with Hbox also produces this issue.

Workaround

set hflex="1" on Grid.