What is happening to my sidekick lx 09?

Now this is only happening on my sidekick when im on AIM..some times no 1 on my buddie list signs on or signs of...also i never reseve any IM from any on of my friends....5 to 10 minuts later...everybody that signd of and on and all the IMs i recieve comes all at 1 time....is this a problem with my AIM or is it a problem with the sidekick lx 09 internet?...by the way this only started happining after the sidekick internet was down for 4 dayss.....soooo plzzzz help me!!!