I am using a Dell Studio 17 with Windows 7 and Office 2007 and have downloaded the service pack 2.
In Outlook 2007, when I use instant search I always get "No matches found". I have tried may things to resolve this without success including:
-restarting my computer
-checking for updates (everytime I search for updates I am redirected to my 'Windows Update' from my start menu and it says 'Windows is up to date')
-I have verified that instant search is enabled by going in Outlook to Tools > Instant Search > Search Options and under 'Index messages in these data files' the box next to my Personal folders is checked (this is the only folder)
-I have verified indexing is complete by going to Tools > Instant search > Indexing Status and there are zero items remaining.
-I have rebuilt the index by going to my Control panel and clicking rebuild