I have spent the last 6 hours trying to record with audacity. I have read countless forums and wiki pages, but to no avail. I am new to posting anything on forum so I don't even no if this is the right place. However, I need some assitance please. I want to use my computers built in microphone. When I push record the line is quite flat, after boosting up the amplification and the microphone when I push play after recording i just here a bunch of noice (sounds like a walkie talkie noise) however, my voice--even when yelling

is completly undetectable. Now I used audacity a couple years ago when I had vista, but when I upgraded to windows 7 and consequently lost the audacity program. I simply reinstalled it, but now I can't get it to work. The following info may be useful.
Using:
Audacity 3.3.13 beta version
windows 7
I have done the following:
Configured the sounds on my computer like I read on wiki page.
tried every possible configuration with devices found in preferences.
I did the amplification effect.
I increased the sound of my microphone.
what can i possibly do now? Thanks for for your help!