Zooming cuts off part of screen image

[dficarra]

For some reason sketchup cuts off part of the model image when I'm zooming in and out of our models, one in particular. It's a large sketchup file because of how large a site the project is on, but it wont allow me to zoom in real close to anything without it looking like a section through the model. And it shows up in the jpegs when you try and export the 2D image. I've attached a few screen shots of what I'm talking about here.

Does anyone know how to fix this if it actually can be fixed?
Thanks.

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[remus]

Its called clipping, discussed plenty of times already: http://sketchup.google.com/support/bin/answer.py?hl=en&answer=36261