[closed] Buffer Error

I'm connecting a Windows 7 PC (32-bit, dual-monitor, v1.4.3) to another Windows 7 PC (64-bit, single-monitor, v1.4.3). Most of the time, the setup works perfectly. However, on occasion, I will be unable to transition from my server's desktop to my client desktop. When I view the log on the server, I see that the client is connected just fine, but when I try to move to the client desktop, the following error is shown in the server's log, followed by an entry that the client has reconnected.

error writing socket: No buffer space is available or a buffer deadlock has occured. The socket cannot be created
error writing to client "CLIENT-PC"

accepted client connection
client "CLIENT-PC" has connected

I have not been able to recreate this in testing, but it does seem to happen fairly regularly. Has anybody else seen this?