OK, I saw the first post in which Devon said 98SE won't let you use all 512 meg of RAM. What the...!? NOW it starts to make sense. I am having the same problems. At first someone suggested it was a boot sector virus, and they ran some software that cleaned it and the PPP worked fine for her. But I DO use an athlon 550 which will has to use 98se (I've never tried NT4 though, so I gotta look around Toms Hardware site for info there) rather than 98. I bought all this friggin' RAM and it's not even being used by 98SE? How much does it actually allow? Thanks