I usually save all of my projects in my documents as well (I prefer not to save things like that in Program Files), and I was having a lot of trouble with the editor as well when I downloaded the new version.
I'm not sure if that is actually what's causing the issue, but you could try to save your projects to the specified folder in the Program Files and see if running them from there helps.
If (like me) you really don't want to do that and want to keep your files saved in your Documents, I'd recommend using an alternate editor than what comes standard with DBPro. My personal preference is
CodeSurge, it really is a great editor for DBPro projects and it alleviated all my compiler errors that I got when using the default editor.