vertices not moving during modeling

hello all.

i’ve ran into a problem while modeling the torso of my model. this is the first time i’ve modeled one so i’m still green at this. i watched the blenderella modeling tutorial and decided ti mark the topology flow like she does in the video so i can be sure the lines flow nicely. however, when i marked them in darker colors, the vertices refuse to move. well…they do move a bit, but in harsh and random directions. does anyone know what the problem is?

i hope it’s not my computer already. i have a duel core processor with 4 gigs of ram.

attached is a screen shot of the model currently. (ignore the unrefined loops ^^; )


Try turning off snapping (magnet icon on the bottom right of the 3dview header)

oooooh wow i am an idiot…that was it! i’m not sure how that even got turned on. thanks so much!