[X2Go-User] Xwin start failure: unsafe environment error

  Hello, I am running  3.99.2.1 on  Win-7 64 bit,  accessing a Linux desktop locally. Worked fine for a while although I some time got an error which is not persistent: when connecting to the session I get: Xserver aborted due to an unsafe environment. Win was started with the following command line: (null). A quick google of the error brings me to the parsing the args of the x-server.   Is the x-server being started with a wrong command line ?  Is this an x2go issue or xwin ? If any one can tell me how to collect more info, much appreciated. Thanks Gertjan