SIO: Latest changes from KrossX which solves problems with Metal Gear Solid 3 and Shining Force EXA.  

You might need to make a  new memory card for those games if you had a problem.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5774 96395faa-99c1-11dd-bbfe-3dabce05a288