Have a 506 image pano, 22x23 rows, shot with the Gigapan Epic Pro. Imported using the Gigapan import.
It tried to make an equirectangular out of it - total mess. Tried the other projections, no good. Average error was over 15. Maybe 20 images had correct links. The import grid was totally ignored.
This was on the fourth try - all other tries crashed durint SIFT (ati driver, newest version, downloaded two datys ago).
64 gig of RAM, 6 core CPU, 4 SSD's in RAID, 4 3TB drives, two AMD Radeon HD7900 video cards 4 gig of RAM each. I built the system for gigapans, and was hoping to use Autopano Giga - but i can't get past the crashes.
I had this ATI06AXX.DLL trouble earlier this year, and did some research. I found it to be related to the ATI driver and GPU processing, OpenGL. Disabling GPU processing made the trouble disappear. In some way or another (some updates etc) I can now enable GPU processing without trouble.