Linux host, 3 Win7 VMs, copy/paste works in 2, not in 1

[MarkKnecht]

This system runs Gentoo Linux and KDE as a desktop manager. I've run Virtualbox for quite awhile with 2 VMs. Bidirectional copy/paste works fine between KDE and the older 2 VMs. Linux-> Windows or Windows-> Linux. This allows me to copy/paste between the older 2 VMs just fine. I built a 3rd VM for software test purposes about 6 months ago but never tested copy/paste.

This morning I needed copy/paste in the new VM but it didn't work at all. I found that when the VM was initially built it was done with the Shared Buffer feature disabled. I shut down, enabled it in Settings, and rebooted but it doesn't work correctly. It seems to be stuck in Guest to Host. I can send a paste buffer to KDE, and hence indirectly to the other two VMs, but I cannot receive a paste buffer from KDE or the other VMs.

Can anyone point me at a good place to figure out what's wrong? I've attempted to upload a working & non-working vbox file but this system doesn't allow the vbox extension. Let me know what's the right way to get the data here and I will. Do I rename copies of the files or paste the info into this thread, or something else?

Thanks,
Mark

[MarkKnecht]

BTW - In the *.vbox files all three VMs have the same code:

<Clipboard mode="Bidirectional"/>
<DragAndDrop mode="Disabled"/>

[socratis]

Zip the .VBOXes. Oh, and since you're at it, zip and attach a .log of the failing VM.

[MarkKnecht]

OK, hopefully everything is in the attached zip. These files were taken with the machine running live. If that's a problem I can shut machines down later today.

The two working VMs are Builder & Win7-DualMonitor. The failing VM is TradeStation Stable.

NOTE: The _ONLY_ way I mean fail WRT to these VMs is the bidirection buffer. In all other ways AFAICT the TradeStation Stable VM is fine.

Thanks!