Right click my computer on your desktop and hit properties.

Should look something like the pic I attached.



Also, does your computer freeze when your running several different applications?
If not, try getting a free virus scan program such as Spybot S&D and Ad-aware.

Spybot : The home of Spybot-S&D!

Ad-Aware : Ad-Aware 2007 - Reviews and free downloads at Download.com