This blizzard of blue words indicates that you have run into a feature called AutoTopic which is annoying if it is ON all the time, but very helpful at certain seasons. When you double-click on a blue word, you can instantly see all the other resources in PC Study Bible which can tell you more about the blue word.
To turn OFF AutoTopic:
Start PC Study Bible.
Click on Options
AutoTopic probably shows a checkmark.
Click on AutoTopic to remove the checkmark. (You can click it again to restore the checkmark.)
Now the blue words should be gone.