@baligo it works! thank you so much! 
Best posts made by liewcheonfong
Latest posts made by liewcheonfong
- Opera Touch
 - 
	RE: Latest Update Broke the Opera UIOpera for Linux
Yes, I had the same issue and it has been discussed at https://forums.opera.com/topic/43542/latest-update-broke-the-opera-ui
The solution is enable hardware acceleration when available.
- Go to opera://settings/system
 - The top item listed there should be the 'Enable hardware acceleration when available' toggle.
 
 - Opera for Linux