Dear Nicos,
Thank you for your message.
I tried complete reinstall from R and Swi but the problem is still there :
Yes I had previous version of SWI and R on this Laptop, but I uninstalled the old versions, checked that path was reset and register also before installing the new versions.
I spent a whole day on testing various versions of R and SWi, and none worked correctly.
I installed R and SWI on my wife’s old PC and it works correctly, but it is not a solution.
I can’t understand why a clean reinstallation doesn’t work…
Do you, or someone else, have a hint on what I can do without having to use “virtual box” or “dual boot” (too complex for me …).
Thank you in advance for your help.
best regards
JAB