Please enable JAVA console: Start -> Settings -> Control Panel -> Java -> Advanced -> Java console -> Show console
Clean JAVA cache: Start -> Settings -> Control Panel -> Java -> General -> Temporary Internet Files -> Settings -> Delete Files
Restart the platform and make sure the version is 2.17.5. Help/About
Click on File/Restore default
If the platform has still some problems, please look into the JAVA console for the output after the problems appear and send it to
[email protected] in text format.