Ok for anyone that upgraded from the full version to the lastest beta two things you can try.

1) Uninstall then reinstall to the beta version

2) Clear the cache, here are the instructions on how to do so:

Before doing any of this back up your settings.

-Open any folder on your computer (My Computer works, too)
-Open Tools->Folder Options (on Vista, hit F10 to see this menu)
-Under the 'View' tab, Click the "Show Hidden Files\Folders" option
-Click OK out of that dialog

Then go to Start>Run (or Start>Start Search in Vista) and paste the following:

for XP: %userprofile%\local settings\application data\stardock

for Vista: %userprofile%\AppData\local\stardock\

Delete any ObjectDock or ObjectDock Plus folders in this directory.

Next, you will have to go into the registry to delete a key. Do this by:

-Press the 'Windows' key and the 'r' key at the same time
-Type in 'regedit' and press enter
-Navigate to the key 'HKEY_CURRENT_USER\Software\Stardock\'
-If you see a listing for 'ObjectDock' click on it and press the delete key, click yes to the prompt that comes up.

Reboot your machine once again and then reinstall ObjectDock. Any settings within ObjectDock should be removed by completing this process.

To Restore Dock settings:
-Right Click on the dock and choose 'Dock Settings...'
-Click on the 'Themes' Section on the left side.
-Click the 'Load Previous Dock...' button.
-Choose the name you gave the dock when you saved it.

Please let me know whether this resolves the systray issue.

Ok so we had a few people say that this did work for them and a few that didn.t We are testing to narrow down the trouble. In the mean time we still suggest that you turn off pre-release versions and "update" (ie back up to the last version of the software) until an update can be made. Of course this is still a beta version of the software so troubles like this will occur. Thanks for the heads up!

Uninstalling a re-installing through SDC worked for me, though still at a loss as to why it suddenly lost the systray when I had not updated anything.

Well now that we are back to the previous beta if you have updated to that version and the error persists please uninstall the whole thing, restart, then reinstall the beta. Let me know if that works for you as I have it working on this end on Vista and XP.

when i used impulse to uninstall object dock plus, files were not found, so was unable to un-install the prog. received same error msg using sdcentral. object dock was not listed under vista installed progs. so i'm using as is until fix found. btw, i had not updated the prog (running latest beta), yet restarted one a.m. and my systray was gone. deleted dock & re-installed but no luck. running vista ultimate w/latest updates. possible recent auto-update cause prob w/ object dock? outside windefender updates, none on my system. any suggestions?

Ok, impulse now dropped me back to 1.90.033 and regardless of "show previews" setting it doesn't change. My weather docklet doesnt work which implies a way too old version. Something's fishy... Or is it simply what you tried to tell me but I didnt quite comprehend?

Same here.

I've been using Objectdock Plus for over a year now and have been patiently waiting for things like the Startmenu problem to be fixed in a non beta release. Now with impulse's latest update my system tray icons and startmenu no longer work. I've tried reinstalling with no luck.

Very Frustrating!!!!!!

Same for me. I didn't update or modify OD in any way. The system tray simply stopped working overnight.

The uninstall/reinstall method posted here did not work for me. I simply get a message that system tray and start menu functionality is not supported in 64-bit OS' now.

I was planning a complete stardock wipe with an aggressive mop-up and a dash of lemon, but since the plug was pulled on the affected beta I figure there's no point.

Hey BDBF it looks like the beta update (1.91k (a).025) has been pulled from Impulse.  It isn't showing for me.

Well, now that I've followed the Support advise in this thread, my ObjectDock Plus is completely hosed. Before I did any of this I simply had no SysTray.

WHERE CAN I DOWNLOAD THE PREVIOUSLY OFFERED VERSIONS OF OBJECTDOCK PLUS.

THESE VERSIONS ARE NO LONGER OFFERED VIA IMPULSE OR STARDOCK CENTRAL. I HAVE A PAID SUBSCRIPTION AND HAVE HAD THESE VERSIONS INSTALLED PREVIOUSLY. STARDOCK SOFTWARE DOES NOT PERMIT BACKING UP OF THE DOWNLOADED SOFTWARE, SO I NEVER HAD THE OPPORTUNITY TO ARCHIVE THESE PROGRAMS, FOR WHICH I HAVE A PAID SUBSCRIPTION.

THIS IS WHY UPDATES OFFERED ONLY THROUGH IMPULSE ARE EVIL.

So, how does that let me move backups of those programs to a CD or file server? Also, it's not exactly an intuitive way to archive software. I only found it about an hour ago. Doesn't help me now.

I had access to DIFFERENT versions that what are offered now. Offerred DURING my subscription. I still want to use them. I should be able to download any software that I was able to download previously. That is the whole point of a subscription.

How long has ObjectDock 1.9 been in beta? <sarcasm>If they aren't sitting around drinking coffee, I don't know what they're doing.</sarcasm> I know that it's difficult when things break, but I'm not asking for a fix. I'm asking to download the same software that I downloaded previously. The same software that their tech support suggested that I uninstall from my PC.

I've gone from having ObjectDock working, except for the System Tray, to having NO ObjectDock at all!

No systray icons here either !! 

Still waiting for a fix or some response from stardock.