If you think about this topic: Crash, exit or high CPU when viewing certain directories, been there, done that. I still think this is some Vista/Win7 issue, because I don't have problems in XP with Directory Opus. This is happening if I run DO from scratch (let's say if I completely close Directory Opus processes) and than directly right click on hdd drive icons. But after I do mentioned workaround (first right click on cd or removable drives icon), then I don't have problems accessing to hdd drives with right click. Maybe I will find what is causing this behaviour.