I have a not very complex SVG (7 layers, under 20 blurred objects) and it proved impossible to export it as PNG at 1600x1200. CPU usage climbs to 100% (Athlon XP 1800+) and stay here, Inkscape becomes unresponsive. I had to kill it after 30 minutes. Exporting a thumbnail at 128x96 work OK, but the full image not.
I tried a workaround: separate the file in 7 different files (one for each layer), export them as PNG and put together in GIMP. It is doable for 6 of the 7 layers (but not nice with some of them).
The last layer remaining (attached) is the worst: I can't export it as PNG. It contains only two shapes, each of them with a blur filter. Export to PNG at 1600x1200 freeze Inkscape and I killed it after 30 minutes.
Is there a way for me to get the PNG? I guess I can leave it over night to export, but this is ridiculous for such a small and simple file.
Used the autopackage version 20070101 (after I got the same bad performance with a slightly older autopackage version).