PC: Call of Duty: Black Ops has stopped working

This windows error message pops up when i attempt to run thr multilayer game. I am trying to launch it off steam.

SOME ONE PLEASE HElP IM GETTING NERVOUS.

Got nothing to do with my spec.

Problem signature:
  Problem Event Name:     APPCRASH
  Application Name:     BlackOpsMP.exe
  Application Version:     0.0.0.0
  Application Timestamp:     4cd73079
  Fault Module Name:     d3dx9_43.dll
  Fault Module Version:     6.0.6000.16386
  Fault Module Timestamp:     4549bdf8
  Exception Code:     c0000135
  Exception Offset:     0006f1d1
  OS Version:     6.0.6000.2.0.0.768.3
  Locale ID:     1033
  Additional Information 1:     9d13
  Additional Information 2:     1abee00edb3fc1158f9ad6f44f0f6be8
  Additional Information 3:     9d13
  Additional Information 4:     1abee00edb3fc1158f9ad6f44f0f6be8