Assing device component problem

Hello,

Our scenario is MI 7.0 SP11 on Windows 2003 64bit

Issue: Assign a device component

we have an issue when we try assign a device component to a

device id. What we are doing is trying to assign a device component to

a device that we have already synchronized and with an ID assigned. We

go to Device Maintenance, select one device id for an specific user,

select device components tab, Add/Remove, select our Mobile Component,

save, and then nothing happened, we are not able to see in the list of

components assigned our component that we just added.

We only see the Mobile Engine component (MOBILEENGINE_JSP) Version

70110 with state Deletion with next synchronization. But when we

synchronize the MI Client, it downloads our application and then the

data, and everything is ok. But if we go to the Mobile Components Tab,

we still not able to see our applications assigned. Also sometimes,

when we synchronize the application, the first times everything is ok,

but is some synchronization the application is deleted without any

reason, and we lost everything in the Client.

Please any suggest?

Thanks a lot

Gabriel