When composing a new email in Evolution, the subject line of the message one is composing is not spell-checked.

I am using Ubuntu 10.10 Netbook Remix with Evolution 2.30.3.

To reproduce the bug:

1. Open Evolution
2. Click "New" to compose a new email message
3. Deliberately type a misspelled word in the subject line.
4. Notice that the system does not underline the misspelled word.
5. Copy and paste the misspelled word into the body of the new email and notice that the system underlines the misspelled word in red in the body, but not in the subject line.

This is filed as Bug#668074 in Ubuntu Launchpad.

Thank you.