normally, when changing a file, a '*' is added to the tab to indicate the file is changed.
I have create a file with the size of 120Mb, and i don't see this happen after change....
Volume in drive C is Acer
Volume Serial Number is A0B0-B175
Directory of C:\temp
03-05-2014 11:54 120.056.287 large.txt
1 File(s) 120.056.287 bytes
0 Dir(s) 108.912.947.200 bytes free
Version of Notepad++: 6.6 (UNICODE)
The file is ASCII (it's created by doing: DIR \ /s >large.txt )