Program crash when performing open/save.

I'm not sure what it is but it has only started happening in the past week or 2.

When I open a program such as Google Sketchup and then hit open or save, the box pops up and then crashes the whole program.

Code:

Description:
  A problem caused this program to stop interacting with Windows.

Problem signature:
  Problem Event Name:    AppHangB1
  Application Name:    SketchUp.exe
  Application Version:    7.1.6860.0
  Application Timestamp:    4b3ac4ab
  Hang Signature:    8831
  Hang Type:    0
  OS Version:    6.1.7600.2.0.0.256.1
  Locale ID:    2057
  Additional Hang Signature 1:    88310679e19428b40452efab48a312a0
  Additional Hang Signature 2:    1c92
  Additional Hang Signature 3:    1c929a86fd7e79630e979e4ec06c9c3c
  Additional Hang Signature 4:    8831
  Additional Hang Signature 5:    88310679e19428b40452efab48a312a0
  Additional Hang Signature 6:    1c92
  Additional Hang Signature 7:    1c929a86fd7e79630e979e4ec06c9c3c

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Same thing happens for a few other programs such as Sony Vegas 8 and Gordian Knot.

I looked at doing a system restore but my earliest one is the 16th and it was happening long before then.

Any help on resolving this issue would be much appreciated. :)

Thanks.

Thanks that worked. :)