Question: gray login screen + strange icons
Since couple of weeks i'm experiencing strange behavior after rebooting my imac.
The login screen stays gray and my magic mouse isn't working. A normal USB mouse is working.
After logged in the magic mouse works again and the normal background is visible.
Second I have some strange icons in my menu bar.
the wifi icon isn't showing and stripes, although i'm connected with wifi and my Apple tv is showing the same strange icon.
Anybody else has this problem or knows a solution for this problem ?
The imac is a late imac 21,5 inch 2012, core i5 with 8 GB memory.
iMac, macOS High Sierra (10.13.3)