hdup - problems with files on VFAT/FAT32

Hi,

I have just installed hdup. Basically, it seems to work as I would like a 
backup program to work.

In order to share documents between linux and Windows, I have mounted a 
VFAT/FAT32 partition under /mnt/win_d/

This seems to cause some problems: the stuff on this filesystem seems to be 
backed up even if it did not change. 

Using 
	diff inclist.weekly inclist.monthly 
showed that the second number on many lines associated to the files on 
/mnt/win_d was changed.

I clearly did not edit all these files. It could be possible that some program 
did access these files, but they were not modified.

SO, I would like to know:
	- if the VFAT partition is responsible for the problem ;
	- if there is an easy way to solve the problem (other than unmounting the 
VFAT partition!).

Thanks for any answer.

Pascal