The best way to resolve this is to try rebooting. That fixed it for me, and it should for you.

But install Google Desktop Search and you’re likely to lose the global shortcut key of Win + F, and there’s no obvious way to get it back.

Here’s how.

1. Open Control Panel.
2. Find Default Programs (you may have to set Control Panel to classic view to find it.)
3. In there, open Set Default Programs.
4. For Windows Search Explorer, click on Set this program as default.
5. Click OK.
6. You’re done.

Source: Forum.

For Singapore owners: For SingTel customers, the Nexus One should auto-connect to their 3G network.  For Starhub and M1 customers, they will need to enter in their APN settings to connect to their 3G network. 

1.  Go to Settings > Wireless & Networks > Mobile Networks > Access Point Names.

2. Hit Menu button, create new APN.

3. Enter new APN settings.  See below for the details.

4. Hit Menu button, save settings.

5. Select the new APN name, then hit the home button.  Your 3G connection will shortly appear in the top bar.

If users can’t find the answers they need, they can call the HTC Support line in Singapore at 1-800-238-7788 from 8am-8pm, Monday to Saturday.  HTC is providing local support and repair services for Nexus One.

=============

For Starhub customers:

- name: Starhub Internet

- APN: shwapint

- username: [leave blank]

- password: [leave blank]

For M1 customers:

- name: M1 Internet

- APN: sunsurf 
- username: 65 
- password: user123

And in case it is not working for SingTel customers:

- name: SingTel Internet

- APN: internet 
- username: 65IDEAS (or blank) 
- password: IDEAS (or blank)

Text

CTRL + R Right align text

CTRL + E Center align text

CTRL + L Left align text

Spacing

CTRL + 1 For single spaced lines

CTRL + 2 For double spaced lines

CTRL + 5 For 1.5 spaced lines

Function keys

F9 Send an email to the contact you’re chatting with

F11 Start a voice chat with the contact

F12 Cancel the current call

Other

ESC Close the current window

ALT + ESC Close all Google Talk windows

WINDOWS + Esc  Open Google Talk if minimized, or behind other windows

Tab/CTRL+Tab/Ctrl+i Cycle through open windows

Shift+Tab Cycle backwards through open windows

Sources

Google Talk keyboard shortcuts

Shortcuts from Customize Talk

Saving your My Places file to another computer

If you are still using the old computer, load Google Earth and right click on the My Places icon. Choose the Save Place As option from the pop-up menu:

Select the KMZ file (it’s smaller: a KMZ is a compressed version of a KML file and these files can get quite big):

Save it to somewhere you can find it again.

Sending your Google Earth My Places via email

Another option is to send it via email.

Select the My Places folder in the left hand pane:

Click on the email icon at the top of the main window:

And follow the instructions:

Finding and saving the file on another drive

If you’re not using the computer you want to save your My Places from, then you’ll have to find the kml file first.

The file is stored in the folder C:\Documents and Settings\<username>\Application Data\Google\GoogleEarth and is called myplaces.kml.

So you can either dig down to that folder or search for the file itself.

Once you’ve found it, save it to the place you want to keep it.

Importing the My Places file into Google Earth

This is pretty straightforward: Once you’ve opened Google Earth, just click on the File/Open menu:

and open the myplaces.kml or myplaces.kmz file.

GoogleEarth will insert the MyPlaces folder at the bottom of any existing places in the Temporary Folders in your Places pane

You’ll need to move those places you want to save at the end of the session or they’ll be deleted.