Yeah, it stopped working for me too! Now, sometimes I have items in the SysTray, sometimes I don't. Haven't been able to detect a pattern, much less a cause and effect. I'm not using Media Monkey, nor anything else that should cause the SysTray icons to disappear. They are, at least, in the Win XP systray so can be accessed. But as you say, this wipes out a lot of the reason to use OD+, and it sure feels like a bug!
Problem solved(?) Appears so, anyway. After uninstalling both Stardock Central and Objectdock 1.9, I discovered that I still didn't have all my icons in the System Tray. Found XP Knowledgebase article 84571 that seems to address that problem. Short version: It appears that SDDP Discovery Service (UnP&P) can screw up what goes into the systray. Which in turn seems to screw up OD+ 1.9 System Tray.
I have just upgraded to OD+ 1.9, first manually, then through an uninstall and install via Stardock Central. I have this same problem -- nothing displays in System Tray tab. And nothing seems to make (allow?) the System Tray tab to display what's running. None of the suggestions I can find in the SD forum have worked. But SysTray worked fine with 1.5 4-1/2 hours ago. Does anyone know for sure if SDMCP.exe should b