Please describe the problem:
When I open the file dialog in any gtk+ application, such as gimp, eclipse, gnucash..... with several types of files to choose from, when I click in the extension pop-up menu, I can only see 1/3 of them, and the rest are displaced.

Steps to reproduce:
1. Open the gimp (any version)
2. Open the File Dialog to open a file
3. Click on the Extensions pop-up menu
Show the displacemente


Actual results:
You see the file types extensions displaced (as shown in the attachements)

Expected results:
To see the full list without displacements, just as it keeps when I click on the bottom button until the list is as it should have been.

Does this happen every time?
yes

Other information:
2 examples in the attachements.
This appens in english and in spanish languages.