Many results like this one, example:
C:\Windows\AppPatch\sysmain.sdb (12 hits)
Line 2: #
Line 9: &
Line 703: ì
Line 731: ¨
Line 742: e
How it looks in Notepad++: http://i57.tinypic.com/otned2.png
This happens quite frequently in searches that have only regular alphabet characters but look in folders that may contain DLLs and other application files.
It doesn't handle binary files well (for example sbd, dll, etc). If you double click one of those results you will find that the file actually contains the text you searched for. The results window doesn't display the entire line properly due to all the odd non-alphabetic characters. You'll just have to ignore those results or use a filter to look at specific types of files.
That makes sense, thanks.