Word 2007和PowerDesigner 12.5衝突，會導致鼠標失靈。
苦惱了好些天，在這裏看到的線索 http://www.cnblogs.com/gucsnet/archive/2008/08/24/1275319.html
感謝一下!
摘錄一下解決方案:
None of this solutions worked for me, I'm using word 2007 on XP, but I've found that the problem was the "Sybase - Power Designer 12.5" add-ins for word 2007, I removed that add-in using the following steps:
1. Launch word 2007 (no document should be opened, not even a blank document, do not open words doubleclicking a word document)
2. Click the office button on the top-left corner.
3. On the displayed menu click "Word Options".
4. If you followed this steps you should be able to click "Add-ins" option.
5. Select "COM Add-ins" on the manage option at the bottom of the "Add-ins" page.
6. Click "Go" button.
7. On the "Add-ins avaiable" list of "COM Add-ins" window select those Add-ins that you suspect that are producing troubles with words (in my case I've removed Power designer and PDF maker Add-ins) and press "Remove".
8. Press OK.
9. Restart Words 2007.
Finally Word 2007 should be working fine.
If you are not able to access the Add-Ins option in "Word Options" even using the steps above, you should try to rename or remove the following registry key:
HKEY_CURRENT_USER/Software/Microsoft/Office/12.0/Word/Options.
I hope this steps helps anyone that suffer this problem.
Personally I've got little disapointed of microsoft after suffering this problem, I hope to have a fix soon.