MSComm cpu consumption

Hello all,

I want to know if this is regular behavior of the MSComm control, Im receiving a continous stream of data, and after the 1000th line I keep receiving, but the app freezes until the transmission is over consuming lots of cpu!...I've tried with DoEvents right after I receive with MSComm1.input, but after a while I receive a "run-time error 28, stack overflow" crashing my app....anyone has an idea whats causing this?

edit: Im receiving about 300kB, baud rate: 9600 and the problem gets worse with 19200...

it seems like there is an error with your code, post it!