Hello Nocturnal,
This problem does not seem to be directly related to Parallels Desktop. It can occur in Windows Primary OS as well.
Try the following:
1. Open Tools menu ->Internet Options in the IE7 window (or "Start" menu - "Control Panel" - "Internet options" tab in Windows).
2. Open Security tab and click Custom Level button, and in this list disable "Active scripting".
Best regards,
Xenos