Could you explain by step by step process.
1. Step 1 - add text in text mode
2. Step 2 - view text with wrong code (for example)
Here it is video example -
http://screencast.com/t/FIb2FIR1zdY
I can insert Gr. language in Editor without problem -
http://screencast.com/t/FIb2FIR1zdY
after -
http://screencast.com/t/RcIRSzej