If memory serves me I believe this is due to graphics on your form.
Someone made a utility that changed all these ColorSource = 3 to another number.
I had to open each form's scx file as a database and change all of mine before I ran the screen converter.
Open the form as a database, go to record 5 and look at the properties memo field. What is the value of ColorSource
If it is 3 either comment it out or change it to another number.