I have reported crashes with D.A. since its first release mainly centering on out of memory crashes and Nvidia display driver crashes. I was hoping with 1.61 it was fixed. It sure seemed smoother . But this program still has memory handling problems. I have 2 GB of memory and a very large page file and it still crashes in a huge universe when you have colonized many planets and have built many custom ships. I have turned testures off and all anti-aliasing yet this bug still persists. I can play for an hour sometimes 2 before it will pop-up again. The video crash is less frequent perhaps every 8-10 hours of play.Cari Elf has handled this problem in earlier releases. I have the latest Nvidia driver installed. I do not think Nvidia properly fixed their driver , but that should be aseparate issue from the memory crashes.