I (
and many others it seems) have been struggling since the beginning of June with a problem in Google Reader where the hot keys (J,K, space bar and I assume all others) just stop working whenever a "dynamic" update happens (signalled usually by a flash of a yellow highlight in the feed list on the left). Until a page refresh is done they never work again.
It seems that Google is just not responding to this problem.
Who do they think they are? Microsoft?