Help! MySQL Error : The table 'attachment' is full
 

Hi,

I am getting an error form MySql:
MySQL Error : The table 'attachment' is full.
My users cannot upload any attachments, The table size is 4GB. I guess its sort of limitation from MySql and not vBulletin.
Do you know what setting do i need to change to increase the limit? Do you recommend "Switching Attachments from the Database to the File System"? If so why?

Thanks
Maayan Dreamer