Reason for doing a clean uninstall of DVDFab is because some times programs can get files that become corrupt and when you do a normal uninstall of DVDFab there are files and folders that are left behind and when you go to re-install DVDFab and you are still having trouble with the program not running right, it may be caused by DVDFab using the files that was left behind which may be corrupt.

How to do a Clean uninstall of DVDFab Platinum/Gold
Uninstall DVDFab like you normally do, next open My Computer and go to c:\Program Files (OR) where ever you installed DVDFab and delete the DVDFab folder....now close Program Files

Since you are already have your "C" drive open go to "Documents and Settings \ OWNER" and open the "HIDDEN FOLDER" called "Application Data"...now go all the way down the list to "PCOUFFIN" that was left behind when DVDFab was uninstalled and delete the pcouffin( NOTE ) there are 4 entries for the pcouffin delete "ALL 4"....close documents and settings

Now the last thing you want to do in your "C" drive is to open "c:\WINDOWS \ PREFETCH" and delete the boot-up file for DVDFab (better known as the ".pf " file
it will look something like this DVDFAB(PLATINUM or GOLD)3080.EXE- # # # # # # # #.pf (NOTE)where 3080 is the version number and where # is a number and or letter (string of 8 total ( NOTE ) delete all entries for DVDFAB.....close the "C" drive

Now open "My Documents" and delete the DVDFab Folder (AND) the "PCSETUP" Folder ...now close my documents

Empty the Recycle Bin and for the last two steps DO in order
1st.... Do a Registry Clean up using "REGSEEKER" or what ever you use
2nd... Defrag your whole system
NOW Reboot and re-install DVDFab (NOTE) DO NOT USE the old download file of DVDFab that you have had on your computer "COULD be Corrupt RE-DOWNLOAD a new copy of the file to use