We have Spark installed on 30+ machines -- various versions of Windows and Linux.
With every Windows (2k,XP) user, the "incoming call" popup sticks in the top left hand corner 90% of the time. The only way to clear the message is to drag another window over the top of the screen. Java is updated on all machines.
Is there a fix for this? This only occurs with "incoming call" notifications -- IM works fine.