windows messenger live...and connectivity issues...

I'm not sure if I'm in the right place to ask this.. from what I have
gathered so far from searching online two things went on with my computer.
I'm not sure if they are related or not.
I believe there was a windows messenger live upgrade? Right when that
happened I started getting connectivity issues. Connectivity is sporadically
up and down.

At around the same time my MSN sypsweepr discovered an LDLINCH trojan. I
went ahead and deleted it. When I was researching to make sure all traces
were gone, I found out from differnet forums that spysweeper was notifed of
problem and came back with the fact that the trojan was a false positive.
Apparantly it took a windows live messenger file as a trojan. From what I can
gather, I think even if I delelted it upon restart it was put back. (can you
tell I'm not advanced!)

So..my problem right now is that connectivity keeps going up and down (by
the status bar on the bottom of my computer)

I saw on another board a user was having the same problem as I am,but no one
has answered his question. (that user attributed his problem to the messenger
live upgrade)
thanks in advance..I'm really hurting here.