hello. I'm using ubuntu 12.04 x64 on a lenovo s10-3 netbook (specs http://www.cnet.com/laptops/lenovo-i...-33953705.html) and when I use chromium or firefox for a little bit it just stops loading pages and gives the sad face with "this page cannot be displayed". the only way I can get it to work again is to reboot. I've tired switching from unity 2D to lubuntu netbook desktop and the same thing happens. I cleared the cache with ctrl+alt+delete and that didn't solve the problem. I'm still learning the terminal so I'm not sure how to open chromium with the terminal running. It would seem that the memory is getting full but I have no idea how to tell or how to fix it. does anyone else have this problem? and know a fix?