Problems running app on new STM32F407G-DISC1 pcb

Hi, i replied to this discussion: http://midibox.org/forums/topic/19987-goom-stm32f4-usb-problems/ but i guess the board is a better place for it? Maybe someone could move it here. In short, the original poster and me both have similar problems with the new stm32f4 discovery pcb (STM32F407G-DISC1). The app will not run if only powered from micro usb; i think it has to do with a new ST-Link (ST-LINK V2A compared to the old ST-LINKV2) that is on the newer boards. According to

I have an STM32F4 board (about a year old from Mouser) with MB997C above the ST logo on the topside. My newer Disco boards (a few weeks old from RS) have MB997D. I haven't needed to test these yet, but I found a thread that may be of help: https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Discovery/DispForm.aspx?ID=15970&RootFolder=%2Fpublic%2FSTe2ecommunities%2Fmcu%2FLists%2FSTM32Discovery%2FSTM32F407G-Discovery-STlinkV2(V2.J25.M13)%20%20-%20Boot%20fail%20using%20external%2