Hi guys has anyone come across a problem on CIX670 with Stratagy VM where SLT ports start off by not ringing and after a time might go dead completley. I have discovered that when we remove the RSTU3 Card there is a dark brown burn mark on the back of the card and the heat sync is really hot. We have had the power checked and replaced the cabs and some of the cards but this keeps happening. The customer uses vm mw on all slts