I have a network with about 15 computers all running Windows 7 Professional 64bit SP1. They are connected and joined to a local domain running SBS 2008 on a VMware server (ESxi).
Three computers on the network are experiencing random freezing where I have to manually shut the computers down and reboot them. The freezing happens 1-3 times every hour and doesn't seem to be related to a specific action or application the user is doing or working with. It started with just one computer and after scanning for viruses running hardware diagnostics with no results I figured it still must be hardware related. Then the exact same problem happened on a second computer... and now a third. Don't think it is a hardware problem anymore.
Event logs are mostly clean. I did see one error event id 1001 bugcheck error 9087.