Hi,
I received my brand new VR3 few weeks ago with PIN code for activating the pc-link and necessary IR-link cable. After making happily few short dives to test VR3 I decided that it would be a good time to download dive data to PC from my precious(ssssss) VR3.
First I tried Prodive, ok, it was a bit strange that company that sells "hi-end" diving computers can't make decent wizard that would regognize the VR3. But since I'm a programmer (read: mindless slave that types some strange text) my self, it was no big deal to make necessary changes to vrfirm.dat (version number 2007v3,2 added there). Ok, that didn't work. Well, I merrily installed Prolink software that came with the CD (oh, that CD had small crack, but it was so small that it didn't matter, I managed to copy everything from there to safe), but that didn't work either. Both Prodive and Prolink managed to connect to my VR3 and showed my dives (dive time, althought Prolink showed right depth, there is some strange character at the end of the number...oh, and dive date was there too). But here is the catch, althought I could see my dives on the preview window, they were corrupted when I downloaded them to PC. Somehow it seems that transfer disconnects before it finishes.
Oh well, google to the rescue. I found VR / Ouroboros site (
Ouroboros rebreather program downloads) where is Prolink and someone mentioned somewhere that it should work. Since I was now getting a bit desperate, I decided to give it a go. And I think you can guess the answer, it didn't work either.
I have tried to change distance and location of the IR-transmitter but with no luck.
Here are the error messages from Prolink I got:
Index of /VR3
Has anyone had similar problems? Specialy with newest version of VR3? This is getting more than a bit frustrating

Ran into the same problem and sent mine back after a visit to DEMA where I was told they were having problems witht he IR Downloading. My data was always corrupted. I followed the similiar process you went through before but it wasn't unitl Mark H had updated his VR3 to the hard-wired download connection that I choose to send my back.
I have not received my unit back and had heard it was shipped back to England because it could not be repaired Stateside. A month and counting. Good thing I have a back-up. Love the unit diving but it acts like a fish out of water (avoids any helping hand) the rest of the time.