@.PL messages in English could help me but I don't understand everything:
I got mine working by pressing the "Retry" button every few minutes until the window went away (no need to click incessantly); then, I unselected the "Show every startup" checkbox, dealt with the "Retry" button a few minutes longer, and haven't seen the problem since!
When he talks about "Show every startup" checkbox: "I don't know what it's about at all...
Now solved the problem and posting my own reply in case, anyone else has the same answer. The error told me server busy and would only respond by using the ctrl+alt+del then closing the build check. None of the three buttons at the bottom did anything.However I persevered and kept clicking on retry and eventually the message would disappear, I clicked on "do not show at startup" on the welcome screen and then close. The server busy pop up occured. I repeated several times and eventually the do not show at startup worked and close goy me in to Build Check area. I have reopened several times and the error has gone.
"I clicked on "do not show at startup" on the welcome screen and then close" In the same way I don't see what it's about?
The passage of all the parts in 2014 + local work allowed me to do what I wanted. There must still be some problems with the dialogue between Solidworks and our server... To dig into our home.