Lag but only if I pick my Main...o.0

So, I've had problems with internet lag in the past. but this is crazy.

Whenever I play my main, L3373R I get the worse lag ever, I've got to wait on potions and skills and everything. However, if I pick any other char, or anyone else account. 0% lag...

Have you guys heard anything like this? I'm using winxp SP3. 1gig ram, and when I play I've got nothing else running.

B> help 30k and a pig head =]