[niekbeem]

Seems that changing the network adaptor on my MacBookPro solved at least the slow-soft-keys-refreshing:

My Mac Pro is connected to my EuCon switch thru its 2nd Ethernet-port, whilst the 1st Ethernet-port is being used for file sharing and Internet.

My MacBookPro was connected to my EuCon switch thru its built-in Ethernet-port, whilst I used an Apple USB-Ethernet adaptor to connect my MacBookPro to my file-sharing and Internet-network. Now, I swapped those connections: file sharing and Internet are on the built-in Ethernet-port and EuCon is connected on the USB-Ethernet adaptor . in the MacBookPro's System Prefs/EuCon-tab I had to change the port selection of course, and after that the slow-soft-keys-refreshing-speed-issues disappeared, but I can't see why........

Niek/ Amsterdam.