Revit model getting transparent

[NP16]

Hello! I am working on my first Revit project, yesterday I noticed that when I turn all visibility settings on, model gets tranparent-for example, floor slab ir projecting through wall, edge lines don't end up at intersections, etc. Model looks very messy and only way to avoid this is to re-open previosly saved version and then save it every 5 minutes hoping that all that transpareny stuff doesn't show up again.I would be very grateful, if somebody could help me.
And sorry for my English, it's not my native language;)

[Scott D Davis]

Service Pack 1 or 2 for Revit 2010 fixed this issue. Be sure to be running the latest service pack. The 3D view is corrupt. Delete the 3D view and make a new one and the transparent problem will be gone in the new 3D view.

[cdatechguy]

Yeah, but he's using 2009, not 2010.....

Check to see if your Use OpenGL Hardware Acceleration is checked on the Graphics Tab in Options....if it is checked uncheck it and restart Revit.

If its unchecked....there may be an issue with the sweep....

[jeffh]

Service Pack 1 or 2 for Revit 2010 fixed this issue. Be sure to be running the latest service pack. The 3D view is corrupt. Delete the 3D view and make a new one and the transparent problem will be gone in the new 3D view.

This is what I thought too Scott but looking at the screen caps the OP is using 2009 NOT 2010. So I think something else is causing the problem.

Maybe try toggleing hardware acceleration in options to see if on or off affects the problem.

[NP16]

It worked! Thank you very much! If you knew how much time and nerves it will save!:) Thank you!

[NP16]

Looks like somebody posted faster than me.
Before fixing this, I tried to turn on/off Open GL Hardware Acceleration but it really didn't change the situation. Scott was right - 3D view was corrupted. I just deleted it and made new one! Thats it! Thank you guys!

[Scott D Davis]

the OP is using 2009 NOT 2010.

Oops thanks for catching that guys...I didn't pay enough attention!