The Common Notepad Bug

You must have heard about Notepad bugs, like 'Bush hid the facts' and many such lines, where after saving and reopening the file, the text is converted into rectangular boxes. After examining some more lines, I found that this is a bug which exists for all 4-3-3-5 letter combinations.

Try it for yourself:

1. Open Notepad
2. Type 'AAAA BBB CCC DDDDD' (or any other 4-3-3-5 letter combination)
3. Save it as whatever you want
4. Close it, and re-open it

This is an easter egg worth trying.

P.S.: Another funny line: 'this app can break'