This Problem because of some certain combination and frequency of letters in character string because "Notepad" misinterpret the
encoding of the file when it is re-opened. There are lot of other reason because using of Unicode characters. Previous version of notepad not using UNICODE thats why error will not come using previous version.
for more details. visit this website
http://www.hoax-slayer.com/bush-hid-the-facts-notepad.html
HAPPY CODING
for more details. visit this website
http://www.hoax-slayer.com/bush-hid-the-facts-notepad.html
HAPPY CODING