We have started to work with PowerPoint 2007 on a more regular basis, and were disappointed when we found that ctrl+shift+g, h, and j speed key commands did not work anymore to group, ungroup, and regroup objects respectively. We use those speed key commands on a daily basis, which saves a lot of clicks.
Well after looking through the web and a bit of trial and error, we found the solution:
Task Speed Key Command
To Group Objects ctrl+g
To Ungroup Objects ctrl+shift+g
To Regroup Objects ctrl+shift+j
We believe this is an attempt to conform to other design programs, such as Illustrator. Not sure why else for the change. This is the first blog in our series, “Converting to PowerPoint 2007”. As we uncover additional benefits, we will make sure to post. Have you seen any major differences that you’ve figured out solutions too?
If you’re looking for an alternative way to present your PowerPoint deck, try pptPlex by Microsoft Office Labs. This plugin allows you to interactively correspond with your audience. Most slides are presented in sequence. However, with pptPlex, the order can be selected in real-time while presenting. 
