On March 22, 2007, SCE and Stanford University expanded the Folding@home project to the PS3. Along with thousands of PCs already joined over the Internet, PS3 owners are able to lend the computing power of their game systems to the study of improper protein folding and associated diseases, such as Alzheimer's, Parkinson's, Huntington's, cystic fibrosis, and several forms of cancer. The software was included as part of the 1.6 firmware update (March 22, 2007), and can be set to run manually or automatically when the PS3 is idle through the Cross Media Bar. The processed information is then sent back to project's central servers over the Internet. Processing power from PS3 users is greatly contributing to the Folding@home project, and PS3s are third to both NVIDIA and AMD GPUs in terms of teraflops contributed. As of March 2011, more than a million PS3 owners have allowed the Folding@home software to be run on their systems, with over 27,000 currently active, for a total of 8.1 petaFLOPS. By comparison, the world's most powerful supercomputer as of November 2010, the Tianhe-IA has a peak performance of 2.56 petaFLOPS, or 2,566 teraFLOPS. The latest report stated that Folding@Home has passed the 5 native petaFLOP mark, of which 767 teraFLOPS are supplied by PlayStation 3 clients. The Computational Biochemistry and Biophysics Lab in Barcelona has launched a distributed computing project called PS3GRID. This project is expected to run sixteen times faster than an equivalent project on a standard PC. Like most distributed computing projects, it is designed to run only when the computer is idle.  eHiTS Lightning is the first virtual screening and molecular docking software for the PS3. It was released by SimBioSys. as reported by Bio-IT World in July 2008. This application runs up to 30x faster on a single PS3 than on a regular single CPU PC, and it also runs on PS3 clusters, achieving screening of huge chemical compound libraries in a matter of hours or days rather than weeks, which used to be the standard expectation. On March 28, 2010, Sony announced it would be disabling the ability to run other operating systems with the v3.21 update due to security concerns about OtherOS. This update would not affect any existing supercomputing clusters, due to the fact that they are not connected to PSN and would not be forced to update.