QUOTE (Igor Sereda @ March 16, 2010)

Have you enabled time tracking in JIRA? If not, see Administration | Time Tracking tab; after enabling, use menu Connection | Reload Configuration from JIRA in JIRA Client.
I have enabled it right now, reindexed and restarted JIRA server, restarted JIRA Client issued 'Reload JIRA configuraton'. But, unfortunately, menu is still disabled

. Maybe it's some relevant log messages i can check?
Maybe it's some permissions problem? I have never used a time tracking within JIRA before, it's unusable with web interface. I can login to JIRA via web browser under same user as JIRA client and can use 'log work' functionality without any problems.
I have found a problem. If i manually select 'start progress' from issue context menu, JIRA Client will completely disable time tracking. Maybe it will be useful for some status line hint or leave 'stop work' enabled?