TWITCHY 6*SLOT help

HI ALL anyone got any idea's why my 6 slot sometimes corrupts games up one momemt then is fine the other all carts are a hundred percent a ok on there own but as soon as i start filling the slots either one game or another corrupts up at the moment my koff 99 has went tits up who know's tommorow MS3 i wish <IMG SRC="smilies/smile.gif" border="0">

Make shure not only the cart tracks are super clean but also the 60 pin board sockets, the jamma plug 5 volt connection gets hot and dodgy check that, it sometimes causes intermittent problems, see Briggs neo jamma info http://www.mindspring.com/~briggsx/hardMVS/ .Otherwise the six slots as with the other boards seem fairly reliable.

cheers mate i checked the 6 slot its brand new really from vector ive put kof in a different slot now al is ok with the world just when i ahve it 12345 it screws up sometimes <IMG SRC="smilies/smile.gif" border="0">