[quote="nudel"]I drag & drop a lot and I don't think I've ever seen this. I wonder if it happens after viewing a 3rd party virtual folder (e.g. for a digital camera or MP3 player or similar)? I can't think of anything else that would have the opportunity to temporarily mess up drag & drop, yet not mess it up enough that it's still broken when you restart Opus.
There's that IStream issue which can break drag & drop but if something was breaking that then it would stay broken after a restart.
Could also be a mouse driver thing, I suppose. I've only been using Logitech SetPoint for the last few years (not that I am a fan of it! I like their mice not their drivers).[/quote]
No, it happens with regular folders as well (in fact, that's the only place I've ever had this problem as I don't use "virtual" folders more than a couple of times a day). I doubt it's a mouse-driver thing either, as I've had this happen with the Windows built-in driver, Logitech Mouseware, Logitech Setpoint and Microsoft's Intellipoint drivers all depending on what mouse I've had connected at the time. Somehow doubt it's related to the istream thing either, as I've applied that registry file in the past, but did not appear to matter either way as it still happened from time to time after that.
The thing is though, that the problem occurs so irregularly that it's almost impossible to pin down. Sometimes it doesn't happen for weeks, then it suddenly happens several times in a day...there just doesn't seem to be any logic to it. One thing I seem to recall from when the problem revealed its ugly head in Dopus 8, is that it happened much more frequently when I had been working with folders containing many images ,in thumbnail mode, for some time without restarting Dopus. Don't know if it matters though, as it could be that it was just pure coincidence.