March 31, 2013, 04:07:58 am
So how much free hard-disk space do you have, and what are your PC specs?
Can you attach to a post the dxdiag_Lumion.txt file. If you can't access run Lumion to click on the Run DXDiag button from Lumion, then you can find the file in C:\Users\user-name\Documents\Lumion 3 Free (MyDocuments\Lumion 3 Free).