I just noticed some weird behaviour in System Profiler, don't know when it started (On 10.4.2 with latest security patch now). When I look at Software->Extensions in System Profiler, I can click on an extension name and the window below show more info about it. However after I click on the column header ' Last Modified', this doesn't work anymore. Whatever extension I select, the info window keeps showing the same data. Has anybody else noticed this? Call me a newbie, but I think this is weird.