windows 8.1 its really good, runtime c++ 4.5 installed , after launch on z+50+004_B_Bruxelles_bx17 , scenery, Simtiles Analysing elevation and crash :-( INFO:stderr:Unhandled exception in thread started by INFO:stderr:<function createSubProcess at 0x025710B0> INFO:stderr: INFO:stderr:Traceback (most recent call last): INFO:stderr: File "simtiles.py", line 3355, in createSubProcess INFO:stderr: File "simtiles.py", line 1845, in analizeElevations INFO:stderr: File "simtiles.py", line 1249, in loadCurElevations INFO:stderr: File "simtiles.py", line 1205, in elevFromTemp INFO:stderr: File "simtiles.py", line 837, in rwFile INFO:stderr:MemoryError 24 giga memory i7 4770 clock to 4,400Mhz gtx690 , on SSD samsung i try another hdd but is the same ..