my computer tells me 12/7 that I have Low Disk Space, and it's either critical or just a minor importance (meaning sometimes the bubble is with a red x or a yellow exclamation) and other times it says Low Virtual Memory. help me please! it takes 10 minutes just for the different accounts to show, 20 for the desktop to show the icons, 10 minutes for Firefox to open, and 5-10 minutes for a page to load. please help to fix it.