New Macbook Alu 13" running slow

Hi!
I have recentley (Jan 2009) bought the new MacBook with 2gb memory etc.
Though it have recently started running very slow.
I'm using iFreeMem to free inactive RAM mem. Though it fills upp on a very short time and start running slow "again".
What should I do?.
Is there a good application I can use? Should i reinstall OS X ?

Please help!
/John

upgrade your memory.

2GB should be enough for light - medium use, depending on your program usage. What applications are you using? What does Activity Monitor say is using up all your RAM?

vansmith said:

2GB should be enough for light - medium use, depending on your program usage. What applications are you using? What does Activity Monitor say is using up all your RAM?

Click to expand...

Free: 21.37
Wired: 260
Active: 1000.
Inactive: 505

Used: 1.73 GB

VM Size: 42.77gb
Page ins: 2.48 gb
Page outs: 1.87 gb
Swap Used: 1.12 gb.

I'm pretty confused how my cpu has become so slow when I'm not doing anything.
At the moment I'm using, mail, finder, Safari (2 tabs), iCal and Activity Monitor.