System Information
EVGA GTX 460 1GB
Windows 7 64 bit
RAM: 16 GB
CPU: i5-760 OC
Blender Version
Broken: 2.70a f93bc76
Rendering the softbody in this blend file seems to be missing frames.
Video of issue:
http://youtu.be/-t_-YbTbJfg
Source file (not my file):