Do you have lag on GTA?

Well, at the moment, whenever i join a game, it's really laggy, and after about a minute, everyone 'leaves the game' (clearly this isn't the case it's just me) it hasn't happened before, so has anyone experienced simmillar issues (in which case it's my connection) or not (in which case it's probbably to do with the disk...Do you have lag on GTA?
If it's an online problem, it's generally the user. Are your ports open?Do you have lag on GTA?
Do you have issues when you play Halo 3?

I've experienced bullet lag in GTA IV. As in ''my bullets don't hit anything, while enemy bullets produce well placed headshots and an enemy can kill me 17 times with a single clip of ammunition.''I've lagged out of a game once, but it was because my party leader had a bad connection.
wow i totally forgot about lag ...period lol ..when i play online to me its not difference then playing single player ..(obveously as far as lag, gltich, etc. goes ..)
since ive opened my router ports i havent experienced it much except for the occasional bullet lag
when i am the passenger of the car a friend is driving and he hits another car, and when we try to take the tugboat off a ramp.
no I dont,
i don't, i barely lag when i'm playing gta online.
yes sir