Everytime I load up my Excel document, it repeatedly shows up with the message from the title. The two options are OK and Help. help opens Office Help which is useless for anything. Clicking OK displays another message saying "Compile error: Out of memory." with OK and Help buttons. Clicking OK brings up VBEditor with no debug line selected and no macro popped up either for that matter. Eventually, after it repeats that and complains 20 (exaggeration) more times (I think that's due to having a lot of duplicate code for ActiveX controls on each sheet). It highlights the first line (the Sub declaration) of the code below.
Private Sub ComboBox4_Change()
Range("B3") = ActiveSheet.ComboBox4.text
End Sub
Now this is dealing with an ActiveX ComboBox. Opening a file from an earlier date will give no errors. It's like after a certain date, it just refuses to work with it. And get this, it's only happening on one computer. The files are saved on a network drive, which shouldn't be causing an error.
I believe the problem was that I had a user form with an acrobat reader display control (like an iframe, but for PDFs). I didn't have this reference or control on that specific computer and it freaked out. Not 100% sure, but the problem no longer exists.