One of my sticks of RAM is giving me trouble. Can anyone recomend a good testing program?
See this link
That link is out of date... listing 2007 as the latest version.
You can get the 2008 download from CNET
or the Jan 09 download from www.memtest86.com
They have a new version for which they charge a well deserved small fee, but you will likely have very good luck from the free one on their website.
Be sure to run the scan on only one memory module at at time, and then run it for four hours of 7 passes, which ever is longer... It takes that long to get a reliable look
It is good to donate, to encourage Brady and his bunch to keep the engineering going.