I just bought my '96 240sx 4 days ago. I drove it home to Illinois from Las Vegas (freaking 2000 mile trip!!

) The car ran great the entire time.
Tonight, I was cruising around town, then all of a sudden a problem arose. As I am downshifting through my gears, all shifts are smooth and effortless, until 1st gear. I can easily shift into first gear when I am at an absolute dead stop, however, when I am comming to a stop, have my clutch fully depressed, and attempt to shift into 1st gear, I hear the most god awful grinding sound. Sometimes I can get into first when I'm decelerating (but I really have to shove the stick hard), and sometimes the gears just grind and bounce off each other not allowing me to get into first at all.
Do I need new first gear synchros? What's wrong????
Oh, and just as I expected, one of the local ricers pulled up and said, "You should get a silvia front. Oh yeah, and get a silvia engine."
I proceeded to tell him I DID have a "silvia" front. (Judging by the look on his face, I think I had him stumped.)
Please, pretty please help me diagnose my car. She's only 4 days old...

Poor baby.
