can not find subs when opening many files, but it can when it's only 5 files

[GoogleCodeExporter]

What steps will reproduce the problem?
1. It should be the same search result
2.
3.

What is the expected output? What do you see instead?

It will just say "no languages" when opening multiple files but when I only add 
5 files they show up correct 

What version of the product are you using? On what operating system?

1.2.163

Please provide any additional information below.

Original issue reported on code.google.com by Brianmou...@gmail.com on 9 Jun 2012 at 12:59