Unity 2.6.1f crashes

Hey guys, i have recently installed Unity 2.6.1f3, and whenever i open or create a project from the program, or close the program, it crashes with windows opening the 'Unity Editor has crashed.' error dialog box. The only way i can create or open a project is by checking the 'Show project selection box at startup' box in the settings.. and when i close the program, any settings i had saved are lost..

Below are the details from the windows crash promt:

Problem signature: Problem Event Name: APPCRASH Application Name: Unity.exe Application Version: 2.6.1.31223 Application Timestamp: 4b13e3a0 Fault Module Name: mono-editor.dll Fault Module Version: 0.0.0.0 Fault Module Timestamp: 4a3898ba Exception Code: c0000005 Exception Offset: 000860d2 OS Version: 6.1.7600.2.0.0.256.4 Locale ID: 3081 Additional Information 1: 3f8f Additional Information 2: 3f8fd66ebf833e4c9f8c528a7e901ecc Additional Information 3: 7f9f Additional Information 4: 7f9f0104727ede94efb2fc95abaefe91

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and here is the output from the only log file i could find, "Editor.log"

Initialize mono
Direct3D:
    Version:  Direct3D 9.0c [nvd3dum.dll 8.16.11.8886]
    Renderer: NVIDIA GeForce GT 330M
    Vendor:   NVIDIA
    VRAM:     1024 MB
C:/Users/Public/Documents/Unity Projects/Island Demo
  Mono: successfully reloaded assembly
                                         Updating assets - GUID: 00000000000000001000000000000000...
 done: hash - b3795fd68ab4f27992613b8acfafba21
Updating library/editorbuildsettings.asset - GUID: 0000000000000000b000000000000000...
 done: hash - d620ba884aa290f9b38987bc3911bb1a
Updating library/networkmanager.asset - GUID: 0000000000000000a000000000000000...
 done: hash - 6d8cbd47ad5a9022a015765b686c1053
Updating library/buildplayer.prefs - GUID: 00000000000000005000000000000000...
 done: hash - dcdc24cf33f1de0ca21657b641e7a8c9
Updating library/projectsettings.asset - GUID: 00000000000000004000000000000000...
 done: hash - c9fed44c25b62689e325cbca810a4c1c
Updating library/qualitysettings.asset - GUID: 00000000000000009000000000000000...
 done: hash - 8ca2880c01ce73aa5883f20049810bc2
Updating library/tagmanager.asset - GUID: 00000000000000003000000000000000...
 done: hash - 414ee7214039919c32b371622e45039b
Updating library/editorsettings.asset - GUID: 0000000000000000c000000000000000...
 done: hash - be195a9d98d55caa8f41b0fdfb0bbec5
Updating library/dynamicsmanager.asset - GUID: 00000000000000008000000000000000...
 done: hash - 0a202696f9c21bf69324c8212f612d15
Updating library/audiomanager.asset - GUID: 00000000000000006000000000000000...
 done: hash - 71938e3b77c2d450aa1058ae97ae4288
Updating library/inputmanager.asset - GUID: 00000000000000002000000000000000...
 done: hash - f49bcd0a7aabbee02776e8c02f1a9975
Updating library/timemanager.asset - GUID: 00000000000000007000000000000000...
 done: hash - 1456d9aea04a8533d696f7a7b233b9c6
                      Cleanup mono
Start jit cleanup
end jit cleanup

Can anyone understand what might be happening? Please, i would love some input!! Thankyou in advance, Dronnoc :)