William Mark Durst

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
GBSX	$2.33	700	$1,631.00	327,300	2011-09-26	Filing
GBSX	$2.06	9,000	$18,504.00	328,000	2011-09-14	Filing
GBSX	$2.50	3,000	$7,500.00	337,000	2011-09-12	Filing