LATENCY ON IMAC DV 400MHZ!, Well... i'm Natalie, and i can't get the right sound! Options

[injektilo]

Hi there!

This is my problem: I'm newbie in audio recording on my iMac DV G3 400 MHZ... i just started to make some tracks using the built-in interface on my iMac with Cakewalk Metro PPC... when i record using the built-in microphone i get a decent sound... but when i plug my guitar i have a problem of delay... what i play is returned to me after a few miliseconds.. so i'm not able to record as i wish... i read somewhere that this problem is called LATENCY and that this must be fixed with an appropiate audio interface... i'm going to get the TASCAM US-224or 428, but i want to familiarize with the software before that.. can i fix this problem of LATENCY before i get the Tascam?

Thanks

Natalie