my internet spikes rediculously every 5 minutes or so, for 5 minutes... im talkin from 17 ping to abou 20k ping in ventrilo. i first thought it was my router, so i got it replaced. then possibly a virus or something, scanned, got some stuff.. ended up reformatting. then i got a new internet adapter, but ITS STILL SHITTY! what happened? ive have my computer in the same spot for a couple years, and its been fine just till a few weeks ago. help?