The "Insufficient Disk space" error message is related to the Windows Swap file, and ordinarily only occurs with Windows 2000 & Windows XP. If Poser is on a disk of its own, you won't often get the "Insufficient Disk Space" message. When you do, it's time to defrag. The "Out of Memory" error is a "blanket" error message from Poser because Poser lacks the vocabulary of many other programs. Most often that is encountered after you receive messages stating a geometry file is missing.