Before leaving for vacation for 2 weeks I just had to try it out (no diving on vac.) I loaded both software to an XP-Home Edition machine and a Vista-Home Premium machine. Both loaded fine by following the READ ME FIRST instructions. I took my computer snorkling in the farm pond for a bit and after sawtooth profile from hell, took it to 10ft and left on bottom for 5 mins. or so before getting it.
Both computers' security wasn't too sure about allowing the hardware driver after pugging the USB chord in. They said "Microsoft could not verify source etc." but after being pushed through, both machines downloaded the data. At a profile setting of 10 sec. it took each machine about 1 min. 10 sec. to download my mock 14 min. dive.
Uploading the user settable data, Gibby called it the "little three screen thing" is a cool feature that only took about 5 seconds to upload. Make sure you use all caps or it won't allow any characters. You can do a lot with that, like "CHECKING EMAIL" or "SEARCHNG WIFI" or something that will make others wonder if they need to get a new Zeagle computer. With three changing screens of 16 characters, you can have a ball.
All of the functions on the software worked. I thought the 4 selection suit menu was not inclusive enough (i.e. combo thickness suits, hoods etc) and it cannot be added to, but then realized this info does not print out anyway so you can add specifics of gear in the comments section which does print. Works for me!
Thanks for the help Gibby!