Hello and Welcome to Apple Discussions...
Since you are running 10.4.11 you need to post in the
Tiger Forum
Make sure your Microsoft software is up to date:
http://www.microsoft.com/mac/downloads.mspx
Run Disk Utility and Repair Disk Permissions. Disk Utility is here: Applications/Utilities
Launch DU, select MacintoshHD 10.x.x in the panel on the left, select the FirstAid tab and then click: Repair Disk Permissions. Do this every time you do any software updates!
Carolyn 🙂
Message was edited by: Carolyn Samit