This is one more reason why you should use presentation mode in Windows 7 when doing a presentation (or when a customer is sitting next to you).
The first part to why you should use it can be found here: http://www.ultimate-communications.com/2012/01/productivity-tips-use-presentation-mode-when-you-dont-want-to-be-disturbed/
So, How do you enable it?
Just hit start and type “presentation” and hit enter. That should open up the Adjust settings before giving a presentation app.
EDIT: Pat Richard gave a great comment: If you do a lot of presentations, you can create a shortcut to “C:\Windows\System32\PresentationSettings.exe” which will bring up the dialog box at the click of a button.
In the Presentation Settings just mark the “I am currently giving a presentation” box and hit OK. And it might be a good idea to switch background to a nice company logo instead of that Diablo 3 pic that you have now.
This will result in the toast that pops up are a little more discreet.
And as you can see below it just says “Tommy Clarke is inviting you to a conversation.”
If we turn off the presentation mode, it would have shoved this instead.
Well that’s not an IM I want in front of 250 people 
Thanks for the info, Tommy. If you do a lot of presentations, you can create a shortcut to “C:WindowsSystem32PresentationSettings.exe” which will bring up the dialog box at the click of a button.
If you’re giving a presentation, you should be always turn off Lync, Outlook, Twitter and other distractors. It appears unprofessional to have anything but the presentation materials appear on your screen during the session. I do like presentation mode’s ability to change desktops – nice tip!
Presentation Mode isn’t the only thing you should do. I recommend going to Do Not Disturb in Lync. That way, the number of people who could send a message that initiates the toast, is limited. Ideally, going to Presentation Mode should automatically change your presence.
Replied via Twitter, might as well put there too– an alternative is to extend your desktop to the monitor/projector you are using for the presentation. This will keep your Outlook and instant message notifications on your laptop screen (caveat: might be a sound issue if there is multi-media in your presentation).
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