I started seeing this behaviour few weeks ago now
Here is the symptoms:
Windows 8
64 bit
20.3.1.22
when you are working something - specially IE, all of a sudden the the keyboard start typing either +++++ or some junk alphabets.......the letters scrolls to the right itself.
Then you reboot the box
at login prompt, the letters ( the p/w ) gets populated .......it scrolls......
sometimes, after a while 30 min, the system come back fine
sometime, you change the keyborad and put wired keyboard its fine.
Then after a while, you bring back your wireless keyboard - it goes fine...
I'm concern why Norton Internet Security is NOT able to track this issue or behaviour ???
This looks like some sort of bogus - virus or bogus dll or soemthng is happening.....
Any suggestions ?