Hi mels,
Double-check your Ad-Watch settings. Open Ad-Aware SE Plus, click on the "Configuration Cog" and select "Tweak Settings":
Click to view attachmentExpand the Ad-Watch section and make sure that "Load Ad-Watch minimised" is selected (green tick). If it isn't, select it then click "Proceed".
Should you already have that setting selected, deselect it (red cross), click "Proceed" then close Ad-Aware SE and reboot. Then re-open Ad-Aware, select it again and click on "Proceed". That should re-associate the "minimise to tray" action.
If the problem persists, try uninstalling (through Add/Remove programs) and then reinstalling.
Wouldn't hurt to check the following - open Ad-Watch, select "Tools" (lower-right) and ensure "Options > Activity" are set as follows:
Click to view attachmentPost back with how you get on.
Regards,
Spike