try this, WORKS FOR ME
-Close Kies on PC
-Connect the phone to PC / Laptop & Select Mass Storage Mode.
-Select the USB icon from the Notification section in Samsung Galaxy S to Mount the drive.
-You should now see Phone’s Internet Memory (& SD Card) in My Computer.
-Download the following http://www.fileden.com/files/2008/2/28/1786668//FileSearcherforKiesFix.zip
and save it on the desktop.
-Run the utility click search, then select Phone’s Drive and then SD Card’s Drive (if you have SD card in your phone).
-The utility will find the bad files’ list and now you have to go to that location in My Computer and delete all the files listed and then do a research.
-Once you get no results as shown below you are good to go.
-Do the same steps for Phone’s Memory & SD Card (if you have one in your phone).
-Disconnect your phone and re-connect the USB.
-This time select Kies PC Suite option and 100% it will install the MTP USB Device without any problem.
I LOVE INDONESIA