Argh.
Just got a sudden idea to change , -> . from regional settings and it works now. Now I can examine my diving profiles etc without Prolink giving me the nasty "System cannot open Dive profile, Dive contains error!" message...
It was all about Desimal symbol in Regional and Language Options in Windows. In Finland we use comma as a desimal symbon and I guess Prolink (or VR3) uses dot. If somebody has similar problems, just change it from Regional and Language Options -> Regional Settings sheet -> Customize... -> Desimal symbol. Or wait for a fix to Prolink if it comes.
-Jarkko