Does anyone out there happen to know what the proper value for S Register 15 to set it to V90? my roommates and I have 2 56K V90 modems one is a motorola the other an eiger, I can not maintain conection on my eiger no matter what speed I connect at, I believe the S15=0 is part of the problem. S15 used to determine V.32 or V.42 depending on the value, is there a value for V90?