Autodesk Revit Architecture

[#1]

First of All, my system is Windows 7 64bit with a 1gb graphics board and 8 gb ram.

The issue i have is 2 projects keep rendering black, The only thing i see that they have in common, they were both originally done in RAC 2011 then finished in RAC 2012. I have rendered them when using 2011 so i know that it could be done, now when i try to Render it goe to 2% and crashes leaving a black screen. anyone know a fix or why this is happening? I have not changed any settings nor did i add any type of new interior or exterior lighting.

[#2]

Does the following post help?  Specifically clearing the temp folder. Let us know:

http://revitclinic.typepad.com/my_weblog/2011/02/troubleshooting-elements-that-disappear-when-render...

Thanks,

[#3]

I am using RAC 2012 Will the 2011 patch work in this version

[#4]

If using 2012 you do not need that specific hotfix.  The main item to check is closing Revit and clearing the %temp% folder then attempting to render again.

[#5]

I did and there is no change, screen renders black still

[#6]

Checked updates and installed, still didn't work there either? It does seem some jobs can render and some not.

If i'm rendering an Exterior Perspective " Sun only"  would interior Lighting Effect this?