ttm

Hi all, I have a LG RD 5130 color handset and I am not able to set a ring tone or a sound for my incoming SMS. Because of this, I don't get to know a incoming SMS as soon as it arrives and this creates lot of problems for me. Is there a way to set a ring tone or some other sound for my LG 5130 set? Is this a know issue? Does somebody else is also facing a similar problem or only me? Pl. help out guys. Thiru T