Since the server update to 1.22 I experience delays in keyboard presses and even system crashes. Other applications suffer from the started SL application ( running both 1.19.1(4) and RC canditates from 1.20.xx branch). It renders me powerless many times to give any input and is only resolved in 2 odd ways : 1. Minimize the SL-viewer window. This helps 90 % of the time , but can also result in a hang of SL or a system crash ( cold reboot ). 2. Quitting the SL-viewer. Only this resolves the keyboard problem completely and other programs allow me to give input by keyboard again ( which I just had to do to file this issue). I also noticed that keypresses hang and get repeated in moments of latency in the network while the SL-viewer is running. The priority given is based on the fact that this issue also renders movement to a level of almost inusability. Watching the SLblog comments I noticed other users complain about simular 'effects'.