black mesa source freeze at loading

Hi! I just downloaded black mesa 2 days ago and i gave up on trying to run it.
At first i had black screen and nothing appears i saw a soloution here by typing +map background none it seems to be working for main menu but when i tried to play new game the loading freeze at 5 bars i think, please help me to make it work

P.S:i tried dxlevel 9.0 nothing happens,and i cant acess to options either

P.S2:
I have half-life 2 +css + gmod and they are running in full speed and and best graphics settings

NO respond people!!!

Try redownloading it. Some files might be corrupted. Also make sure your drivers are up to date.

What are your specs?

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valveā€™s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.