line input problems vaio vgn-fs415b

[ramplanero]

Is there any way of conmuting the mic input to line in this model? I am running XP home edition and the audio chipset is a Realtek AC97. I tried everything I know even sonic stage masterig studio but the signal keeps coming through mic input and therefore totally saturated. I am starting to think that the only solution it would be to purchase an external sound card which is expensive and I wouldn't like doing it. it is a real shame that something so simple cannot be done in such an esxpensive product. Any help will be most welcome. thanks

[kee-lo_]

Go to the Realtek control panel and change it to a line input

[ramplanero]

thaks man but I do not have that option in the realtek console.it only allows me to change settings from speakers to headphones and change the output source and sampling rate that's all. there is nowhere i can change from mic to line.
thank you for your intrest

[ramplanero]

Sorry, apparently I made a mistake I do not have Ac97 what i have is Realtek HDA. Still don't know what to do.