Hi, thanks for your help :)
i tried updating the driver, doesn't work.
with r80 i had some issues and always crash, so i installed r79.4, it crashes on startup but 'hidestartpage' to 1 fixed that, and i can use it now.
i will read & try the first tutorial now.
after my test with the tutorial, i will try install the last version again and will post here again :)