Process Monitor issue

Hi Team,

I have created a Process Monitor and Targeted a Group which has some 24 windows computers. This monitor is working fine. But now I have a requirement to monitor same process on some more windows computers, so I have added those computers into that group. I can see those computers in membership view of that group, but the process monitor is still not applied to those computers. Any idea what could be the issue? I have even restarted the Management server but no help.