Steps to reproduce:
1. Launch Evolution and go to mail component.
2. Open the default welcome mail in local folder->inbox folder in new window.

Attention: we must choose this default mail, because this mail contains
iframe gtkhtml. 

3. Press F7 to switch to caret mode.
4. Locate the cursor in message body.
5. Press Shift+Down-Arrow to select more words in one line, multi line, 

Expected result:
The window should follow the cursor to display the correct contents which
are selected by user.

Actual result:
The window stops at the right side and won't follow the cursor to display
selected mail contents.


How often does this happen? 
always.

Additional Information:
rodo, I doubt that there is something wrong with the iframe gtkhtml widget.

1), In this case. the  iframe's engine->y_offset is always zero. I remember
you'v told me that the y_offset is the offset of the view. But why it is
always zero here. Is it because the iframe widget has no scollbar ??

2), In the same case, the iframe's engine->height is always a constant
while the top gtkhtml widget's engine->height is a variable which depends
on the height of view.

What is your opinion? Thanks:)