[hpsdr] HRD and Windows 7, curiouser and curiouser - again!

[PETER BUCK]

Hi all, 
Following earlier posts on PowerSDR freeze ups, and very helpful replies, I examined my XP setup for out of date drivers. All were up to date with manufacturers' latest, but on-board video was an issue. Computer replacement was the best option.
Now using a Toshiba laptop with i7-2640M 2.8GHz, 8GB RAM and solid state hard drive, Windows 7 64bit (almost impossible to find 32 bit here) and latest PowerSDR software/HPSDR firmware on Atlas system. All loads and runs without any issues after removing much of the pre-installed bloatware - hurray!! VAC works ok with the computer in Testsigning mode so that the driver loads. No problem with vspmanager, or with loading HRD.
However, although the HRD radio display works, and DM780 reads radio frequency and signal strength, no audio reaches the DM780. Connection using TCP/IP tries but drops out, despite use of correct address.
I seem to remember a mention somewhere that an HRD driver has not been updated for 64 bit systems.
I have checked: firewall, COM ports for conflicts, running HRD in XP simulation mode, ipv4 net interface was installed and running, even tried killing DEP. Still no joy.
Any thoughts anyone? If HRD is not a runner on Win7 64bit - what works for you? I just love the Alice in Wonderland world of Windows!!
Pete, G3LWT
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