If you’re using Windows XP, you can download and install the Microsoft PowerToy, Image Resizer, and use it to resize graphics for use in PowerPoint. Locate the install at www.microsoft.com/windowsxp/downloads/powertoys/
xppowertoys.mspx and install it. Then, follow these steps to resize graphics for PowerPoint:
1. Browse to your image by selecting Start | Programs | Accessories | Windows Explorer, [...]