I'm new to VB, and heve been asked to support an existing application. Two of our users has been using the application, then they started getting a compile error. They are using VB 6.3. The error occurred when trying to refer to a RichTextBox that was supposed to be on a form, but the box is no longer on the form. I've replaced the application, but the box just disappears. This only happens on two out 30 PCs. I've checked that Richtx32.ocx is in the windows\system32 directory, is there anyplace else I can look that might effect this?