When you try to type a dot symbol (.) in a text box or in a page note in a PowerPoint 2010 presentation, a comma (,) is typed unexpectedly. This issue occurs when the following conditions are true:
The format of the region on the computer is set to French (France) or French (Belgium).
You set an AZERTY French mapped keyboard that uses a dot symbol as the decimal separator on the numeric keypad as your keyboard. For example, you set a French (Belgian) keyboard or a French (Default) keyboard as your keyboard.
To resolve this issue, apply the following hotfix:
2597005 Description of the PowerPoint 2010 hotfix package (x86 Powerpoint-x-none.msp, x64 Powerpoint-x-none.msp): December 13, 2011
Registry key information
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
After you install the hotfix package, to have us enable the hotfix for you, go to the "Fix it for me" section. If you prefer to enable the hotfix yourself, go to the "Let me fix it myself" section.
Fix it for me
To enable the hotfix automatically, click the Fix it button or link. Then click Run in the File Download dialog box, and follow the steps in the Fix it wizard.
Install the hotfix that is mentioned in Knowledge Base(KB) article 2597005 before you run this Fix it solution.
This wizard may be in English only. However, the automatic fix also works for other language versions of Windows.
If you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.