Spell Checker in Google Tool Bar

After writing in a forum 'Write Box' I clicked the Spell Check in Goole Tool Bar.

A warning box appeared saying: There was a problem connecting to Google Spelling Servers.
Please make sure you are connected to the Internet, or try again later.

At this time, the msn messenger icon in the Tray of Task Bar had a tiny 'red' cross 'x' in it after it said "Your connection is lost. Will connect in so many minutes and so many seconds".
However, the website of Forum was working alright.

Is the msn messenger connection to Internet has anything to do with this problem?

If yes, then, how did the website of forum functioned w/o problem ?

Thank you.