Can't open folder in FAT 32 partition with kernel 2.6.8-1.521

[Barry Yu]

This is a fresh installation of FC2, after more than 400 updates, found 
that one of the folder in a FAT 32 partition can't be opened by Browser 
folder, when I tried to close the Browser window and I must choose Force 
to quit, and then all icons in desktop are gone and the control panel 
will not function. I have to use Ctrl + Alt +F2 key to open another 
shell in order to get out and reboot the system. This only happens in 
kernel 2.6.8-1.521,
When I choose kernel 265-1.358 in GRUB menu during booting up, I can 
open that folder in that FAT32  partition again!
Any advice to get around such problem?