Currently Being ModeratedMar 16, 2013 8:56 AM (in response to bitercat)
A lot of people around here seem Microsoft-averse, and a question about a non-Apple product often gets few responses. I use MS Office on my Macs but have never encoutered this problem, so don't have a clue at this point to offer any help. The place to get effective help with PowerPoint problems is here:
These are very helpful and, unlike here, you occasionally get an MS employee familiar with Macs answering questions.
Be sure to post your version of Office (Office X; Office 2004; Office 2008) when you post there to get help faster.