Greetings. For those of you that are having 0x0000009f Blue Screens (BSODs) that happen when the computer tries to enter power safe mode (sleep, hibernate, etc), this might help. Background: I run JungleDisk on my computers (to backup data to an offsite location). Back in 01/2010, I installed the new version of ESET (4.0). I started to have problems with backing up large files (that would take longer than 3 minutes). I contacted JungleDisk support and they stated that this was a problem with ESET and there was a workaround. Basically, they suggest disabling HTTPS protocol checking. See the first workaround on this webpage: http://support.jungledisk.com/entries/19072-eset-nod-32-time-out-and-lock-up Once I applied the changes in the workaround, my backups started to work fine again. I didn't realize it at the time, but immediately after I made the changes to ESET (provided by the workaround), the computer started to receive BSODs when it was trying to go to sleep or hibernate. At first, I thought that the BSODs were a one-off (rare) problem, but I started to receive them on a consistent basis until I was receiving them multiple times a day. I worked on the problem for about a month and a half and finally uninstalled ESET (in 04/2010). Once I uninstalled ESET, the BSODs went away. Two weeks later (05/2010), I wanted to try and install an older version of ESET (3.x) to see if it would work better (and not BSOD). But by accident, I ended up installing 4.x again. But to my amazement, it didn't BSOD! Just this past week, I started to receive JungleDisk errors again (for large files). So I applied the workaround changes to ESET, and BAM! - the BSODs started again. Summary So, if you have made the workaround changes to ESET (by disabling HTTPS protocol checking) and are having BSODs, then this most probably is your issue. Hope that helps.