Pc-Lab 2000 LT calibrating for hours

Bonjour, I’m french, sorry for my english.

I just got this Pc-Lab 2000 LT this morning.
After installation, I start :
Calibrating - Please wait …
It’s over 2 hours now that it is calibrating, and still shows 20%
Something wrong I think.
Any idea of what happens ?
Tks

Found the solution :
Installation manual says : install driver PSCGU250Driver … and I did it !
No ! Using USB, you must install PCSGU250Driver_WinUSB ! (next file on the CD).

So I desinstalled ther wrong driver, then installed the right one …
and it works !

Thanks Velleman to correct the installation manual, I lost half a day for this mistake !