Well, the thing to keep in mind is that the xml file is easy to make. I am unsure why some have had this problem but here is a fix. Open Notepad, type in the following text
<?xml version="1.0" encoding="utf-8" ?>
- <AmazingCharts>
- <Settings>
<LocalDbPath>C:\AmazingCharts\AmazingCharts.mdf</LocalDbPath>
<SqlPortNumber>61067</SqlPortNumber>
</Settings>
</AmazingCharts>
Change the part that says C:\AmazingCharts\etc. to the location of your AC Folder. Now save it in your AC folder as AmazingCharts.xml . When asked for it, browse to the AC folder and select it. This worked for someone else previously. Let us know if it works.