I just sent the file ... I hope that if have slucion

the graphics card driver is the most up to date ....
I have W7 32-bit, 1GB RAM and also I have the version 4.0 but with previous versions the same thing happens

<r>in the 3D view of my house some walls are transparent, is this normal? and also I can not create pictures, all somebody can tell me why and if you have any solution to this?<br/>
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