CFTC OBTAINS PRELIMINARY INJUNCTION PREVENTING FLORIDA COMMODITY TRADING FIRM, UNITED INVESTORS GROUP, INC. AND FIVE EMPLOYEES, FROM VIOLATING THE COMMODITY EXCHANGE ACT; Nearly 98 Percent Of Accounts Opened At UIG Between August 2003 And June 2004 Lost Money Trading Commodity Options; Customers Lost More Than $6.1 Million, While UIG Charged Over $4.25 Million In Commissions And Fees