janus error when starting multiplayer, SH 2

[Onslot]

hi
i just started back to try to play sh2 online, game runs fine, but not in multiplayer i have both patches, 1.1 and pm patch installed, rebooted computer in between patches making sure they were installed clean, i have two computers, one with win 98, other xp runs the games {sh2,dc}, great, BUT in multiplayer SH2,and DC, all the screens come up, server, etc. BUT when I launch the game, JANUS ERROR comes up, screen goes blank, i use to turn off screen blanker, game ran fine yrs ago, when pm came out, the game ran fine on- line, WHY now, will it not run a multiplayer game??? HELP ME OUT ???
JANUS ERROR comes up, did not use to do that!!! same computers!, the same video cards, never had any trouble before why now???
"this is what happens" I go to start multiplayer mission. screen goes Blank, then Janus error, use to, i would end screen blanker, when i do it now, game dissappears!!!
heres the JANUS ERR
Error -1 [m_ptestunit ==0]
Directx code : "Unecognized error: 0xffffffff "
Sources\CSH2sim.cpp
Line 671