After more investigation I actually have 2 problems. My application as several components. The main one is getting error when I try to open the project..

Class classname in control controlname is not a loaded control class.

This message appears if Visual Basic finds a class name it doesnt recognize.

Control controlname could not be loaded.

This message appears if Visual Basic encounters an unknown type of control in the form description. Visual Basic creates a picture box to represent the unknown control, giving that picture box any valid properties from the unknown control description. When this message appears, a number of invalid property errors are likely to follow

The classes in question are my Report Designers, but they all loaded fine a few hours ago..
The second problem is an other component, I can open it fine, but when I try to compile it, it blows up on MS errors. This code has not been changed in days.
I am very confused about this . Please send any ideas
Thanks