I have my activity monitor running since yesterday morning. When I start my machine, i have about 565mb ram free out of my 768mb total. But come end of the day, after a whole day of websurfing, the free ram is almost left with 0 mb! And there is always this Inactive ram that takes up about 200 to 300mb+.Now after restarting since 20 mins ago, my free ram is down to only 192mb and inactive ram is 350mb. Strange, is this normal?