I agree with Terry. Try an alternative Browser. Firefox or Chrome. Both are free and well regarded.
GF
February 2010
This is because an application is using some "run time" libraries and failing but you don't say what the application may be so I'll guess that it is a Java applet(s).
Next I would not use IE7, I have heard that is STILL has some problems.
Try moving to Mozilla Firefox and/or checking your Java installation.