hello and thnx. looks like my problem is almost resolved, but i still do not have a log file tab. even when i check the advanced options box. I see that in my preferences i should have it between transfer and integration, but its not there, i use v 3.7.6
The log tab is not visible on preferences dialog when it is opened from the login dialog, because it is already there (on login dialog).
However I wanted you to check the server's log, not log of WinSCP.