Wave file exporting troubleshooting.

Having trouble with LMMS? Ask about it here.
I started using LMMS on Windows XP x32 but when I export a . WAV file it rapidly makes a zero-byte file that cannot be opened by any other software, nor LMMS itself. What's goin' on? Please, tell me, it's very important to me!
first we need to know what you did..
The correct method is to:
save your project
from the menu choose
**Project
**export
change untitled.wav to sumthing..
!remember to add extension 'wav' eg like 'mysong.wav'
*save
the next panel gives you several option. just use the default for now..
press 'start'
..That should work .. does here (lmms 0.4.11 32b)

Have yoy btw tried to export to oggForbis -what happens then?