So when I play FIFA with my Sumvision keyboard I got here
http://www.ebay.com/itm/121229170687?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

I can't move sideline, whenever I press the up button and the left button only one of those buttons gets done, same for up and right, same for down and left or right

why is this so o.O

I haven't encountered this problems earlier with this keyboard  

I got it a few weeks ago but haven't really played games on it..

Posted in the wrong thread by accident, can someone move it to Offtopic?