If log files are not showing up, the problem is probably that log4j.properties does not exists in the solution directory before the server is run. The log4j.properties is one of the places where (default) log-files location is configured, so you might want to check out the files content as well. For 6.0 this file is created by the server/ce batch-files that we start TDI with. If you are running TDI as a Windows service, make sure that we have followed the instructions on how to run TDI as a Windows service.