unable to find servers

simply i log into steam start up tf2 and no servers whatsoever try refreshing a few times still nothing can someone help me please i wanna play tf2! heres my dxdiag

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System Information
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Time of this report: 9/6/2009, 22:21:44
       Machine name: OOMOOSEOO-PC
   Operating System: Windows Vista™ Home Premium (6.0, Build 6002) Service Pack 2 (6002.lh_sp2rtm.090410-1830)
           Language: English (Regional Setting: English)
System Manufacturer: alienware
       System Model: alienware
               BIOS: )Phoenix - Award WorkstationBIOS v6.00PG
          Processor: AMD Athlon(tm) 64 X2 Dual Core Processor 6400+ (2 CPUs), ~3.2GHz
             Memory: 3070MB RAM
          Page File: 1267MB used, 5077MB available
        Windows Dir: C:\Windows
    DirectX Version: DirectX 10
DX Setup Parameters: Not found
     DxDiag Version: 6.00.6001.18000 32bit Unicode

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DxDiag Notes
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      Display Tab 1: No problems found.
        Sound Tab 1: No problems found.
        Sound Tab 2: No problems found.
          Input Tab: No problems found.

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DirectX Debug Levels
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Direct3D:    0/4 (retail)
DirectDraw:  0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay:  0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow:  0/6 (retail)

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Display Devices
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        Card name: NVIDIA GeForce 8800 Ultra
     Manufacturer: NVIDIA
        Chip type: GeForce 8800 Ultra
         DAC type: Integrated RAMDAC
       Device Key: Enum\PCI\VEN_10DE&DEV_0194&SUBSYS_046510DE&REV_A2
   Display Memory: 2020 MB
 Dedicated Memory: 741 MB
    Shared Memory: 1279 MB
     Current Mode: 1920 x 1200 (32 bit) (60Hz)
          Monitor: Dell E248WFP(Analog)
      Driver Name: nvd3dum.dll,nvwgf2um.dll,nvwgf2um.dll
   Driver Version: 8.16.0011.9062 (English)
      DDI Version: 10
Driver Attributes: Final Retail
 Driver Date/Size: 8/17/2009 00:57:00, 7569920 bytes
      WHQL Logo'd: Yes
  WHQL Date Stamp:
Device Identifier: {D7B71E3E-42D4-11CF-0850-6E241DC2C535}
        Vendor ID: 0x10DE
        Device ID: 0x0194
        SubSys ID: 0x046510DE
      Revision ID: 0x00A2
      Revision ID: 0x00A2
     

Just a quick check since this has happened to me a few times. When you close TF2 after not finding servers do you see a window asking if you want to unblock/keep blocking/whatever? If so, just unblock and it should then work, as that would have been preventing it from getting server info.

nah mate ive unblocked it added it to my fire wall exceptions even tried turned off both my firewalls