WINDOWS : PostgreSQL 8.4 Server Start Error

All,

I'm a newbie in postgresql, a few days ago i install postgresql
8.4.3.1 and it works fine, yesterday i install cyberlink powerdvd 9
and after that my postgresql server cannot start, it give the
following error info :

" The postgresql-8.4 - PostgreSQL Server 8.4 service is starting....
The postgresql-8.4 - PostgreSQL Server 8.4 service could not be started.

The service did not report an error
....................................."

And when it succed to start, i cannot connect to the server using
"postgres" username, it gives this error :

" An error has occured :
Error connecting to the server: server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request"

I've noticed that when i install powerdvd the software install
microsoft visual c++ 2005 too, i think that's what make the server
crash and cannot start.

I have unistalled the both the c++ 2005 (from postgresql and from
powerdvd), and do reinstalled the postgresql, it still gives the same
error).

Anyone can help me with this???

TIA,
Zery