I share a directory "netdisk" to windows through samba, and link the mounted2GB(FAT32) usb drive in "/netdisk/sda1" , On windows XPi can copy big filesto /netdisk/sda1" , but on windows vista when i copy files big then 3MB,vista says" There is not enough space on netdisk ,you need an addtional .. MBto copy these files". thanks.

i think this problem is the same as http://support.microsoft.com/kb/954037 , so i download the Hotfixhttp://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=954037&kbln=en-us and install it , it works , now i can copy big files. but i am not sure whether there are the same problem. are there fully tested hotfix now ? "this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix."