Strange thing was though that (yes, also counting the *_xxxxx files) I didn't have 32 files/folders in my MyDocs directory at all, but I only had 27 of them ...(like I stated in my first post).
I had seen the bug with the explanation too (but someone there also got rid of his problem deleting the ._xxxxx-like files)

Edit: Sorry, I only just now read that post by Helmut... I also believe it's strange that the ._ files would have been the reason of my problem, but whatever it was, it sure wasn't having 32 files/folders in my case. (I quadriple checked that, only had 27, including hidden files and folders, when the double folder problem occured)

Dries