I was running vista with 2 GB of ram. After installing matching two new 2 GB modules, I can't boot. It suddenly reboots just after the windows startup progress bar kicks in. Computer works again after removing 2nd module.
Is this a matter of flaky RAM? It's true that this computer used to work with 2 + 1 GB of RAM.
Apparently so, if it boots without the 2nd stick. Tried booting with just the stick you removed, or switching the two of them ?