In a message dated 11/01/2014 19:35:05 GMT Standard Time, paul.alfille@gmail.com writes: I take it you found the URL: http://trl.trimble.com/dscgi/ds.py/Get/File-674264/TrimbleStudio.exe -- it's not that obvious on the website. For me: "New Connection..." from the button bar com2 GPS Receiver / Com2 (again) / 9600 / None / 8 / 1 / Ok Works. I'm having trouble with the google maps loading, but the sky map, satellite tracking position and monitor all work. ------------------------------------------- Most interesting, and the plot definitely thickens:-) After the release of Trimble Studio 1.21.0 in July 2013 Trimble seems to have started running two parallel development streams for this software. The URL above links to a version that describes itself as "Trimble Visual Timing Studio" version 2.01.6 of 25th October 2013, with the status reported as "Private", although the release notes still show it as "Beta", and with the update server being "not available" The version I normally use describes itself as just "Trimble Studio" with displayed status as "Beta" and will offer to update to the latest version whenever run, which it does. At the time of writing that "latest version" is 1.23.0 of 20th November 2013. Whilst Trimble Studio doesn't seem to be quite as easy to find as it once was, with Google generally turning up third party links to earlier versions but not the more obvious direct links into Trimble as before, there are still links to be found via some Trimble product pages, such as here..... http://www.trimble.com/embeddedsystems/condor-gps-module.aspx?dtID=support The file that downloads from there is still an earlier version but it will, as said, offer an update to the latest version. If accepted, that update will automatically overwrite the file in use so best to save a copy of that first if you want to make comparisons. The release notes for either version describe what was originally called "Trimble GPS Studio" as being a major update to Trimble monitor 1.06.0, so no point it would seem in looking for any later versions of that, and checking the "configurator" menus shows that support for earlier products, including the original Thunderbolt, is not included. There is an option for "Other Timing" but I haven't found the courage yet to attack a Thunderbolt with that:-) I've used Studio with the Thunderbolt, and the Trimble Nortel boards, and as Paul comments it does work but with some limitations. The rather nice looking option to interface with Google maps produces a scripting error here and quite a lot of the front screen data, position data etc, doesn't display, I can't remember right now whether this also occured with some of those later devices included in the configurator list so would need to check that. It can be worth playing suck it and see with the various Trimble monitor offerings, particularly with older versions and with older hardware, I've found at times that what's recommended for a particular product might not always be the best option. I've got a variety of Trimble files, different programmes, different versions etc, most are probably still available online but I'm happy to make them available as a single archive if anyone's interested. Regards Nigel GM8PZR