Arrow keys don't work in slide view mode in powerpoint

My powerpoint used to work fine but recently I am unable to advance or move my slides backwards in the Slide view mode with arrow keys, space bar and return.  Nothing seems to work.  I cannot even exit the presentation with the ESC key.  I need to use the cursor to exit presentation.  Because of this situation, I cannot use the remote control to advance my slides.  PLS HELP!!!  

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Many thanks for all the responses.

We managed to reproduce the issue.  Somehow the keyboard focus was lost during slideshow so that keyboard looks frozen (clicking the slideshow window using mouse could regain the keyboard focus ). We are investigating on the root cause.

When can we expect to hear something from Microsoft about how and when this issue will be addressed via an update? You've acknowledged having replicated the issue.

Given the current issue, a presenter cannot be at a location away from the computer to advance the slides using a remote.

The silence from Microsoft about this issue that arose from the latest software update is both annoying and exasperating.

Many thanks for all the responses.

We managed to reproduce the issue.  Somehow the keyboard focus was lost during slideshow so that keyboard looks frozen (clicking the slideshow window using mouse could regain the keyboard focus ). We are investigating on the root cause.

When can we expect to hear something from Microsoft about how and when this issue will be addressed via an update? You've acknowledged having replicated the issue.

Given the current issue, a presenter cannot be at a location away from the computer to advance the slides using a remote.

The silence from Microsoft about this issue that arose from the latest software update is both annoying and exasperating.

After being relieved to find this thread; upon getting to the end of it I'm REALLY disappointed in the lack of response from Microsoft. I'm also a professional speaker, and up until recently "upgrading" to PowerPoint 2011 from 2008 had little reason to switch over to Keynote. That is no longer the case. Can anyone recommend a decent tutorial on making the switch? I did kick the tyres when first switching to Mac, but found it not so intuitive...

After being relieved to find this thread; upon getting to the end of it I'm REALLY disappointed in the lack of response from Microsoft. I'm also a professional speaker, and up until recently "upgrading" to PowerPoint 2011 from 2008 had little reason to switch over to Keynote. That is no longer the case. Can anyone recommend a decent tutorial on making the switch? I did kick the tyres when first switching to Mac, but found it not so intuitive...

No need for a tutorial. Keynote will run all your PowerPoint 2011 files, almost identically. You could still use PowerPoint to create your new presentations and then run them using Keynote.

There's a simple work-around. When the arrow keys or remote will not advance to the next slide, simply use the trackpad to place the cursor on the slide and advance will continue until the next halt...whenever that occurs.

Or simply use your cursor with the arrows that appear at the lower left of the screen when you are navigating the stuck slide. You can then advance using those arrows. Unfortunately, you have to be at your laptop to do this. You cannot be at a speaker's podium away from your laptop. And the arrows are visible to your viewing audience.

Hope these suggestions help. Still nothing but silence from Microsoft; so what else in new. They screw up the update and then offer no response, even when they know they created this issue.