I get SRP drops and reconnects a few times a day which I pick up on my BESAlert. It's been this way for about two years and I gave up in the end and accepted it. I'm sure it's just some SRP polling thing that those who don't use BESAlert don't even notice. As I say, I've had it since 4.0.0 and now I'm on 4.1.4 and it's still the same. I wouldn't worry. Are these the ones you get?
<N/A> | BlackBerry Dispatcher besservername (Application Event Log on besservername) | 10/23/2007 10:28:16 (6FFFC3B1) -> [SRP] Dispatcher\SRP Connection dropped, Error=0