I don't understand this, you mean that I load a serial sketch to the Pro Mini or to the FTD1232?
For the record, I'm using as ISP an Arduino Uno to burn the bootloader, and tried to load sketches too, but the results are still the same.
See if you can get a sketch to load this way.
"This can be easily done in this way:
Tools->Boards->Your Board #### Make sure you are selecting Arduino Pro or Pro Mini
Tools->Programmer->Your Programmer ##### Arduino as ISP
Sketch->Upload Using a Programmer
Note
In order to come back to the default way to program your Arduino you have to rewrite the bootloader. To do this:
Tools->Boards->Your Board
Tools->Programmer->Your Programmer
Tools->Burn Bootloader "