Startup Fail

Anything that doesn't fit into other topics goes here!
Hi,

I just installed LMMS on Windows 7. When I start it, it gives me an error message(when the splash screen appears), it says it crashed because of libportaudio-2.dll. I can't do anything. Can you help me?
I got the same error on Windows XP (see thread 'LMMS crash on Win XP'. I went so far as to reinstall the OS and still got the same error. No idea why.
as i said to ofobbs, tyr ver 0.4.9 -stable and i belive also working on w7
Br.