I think having problems with my memory (2 x 512MB PC3200 Kingston) and suddenly, I downloaded UltimateBootCD with a bunch of utilities including Memtest.
So I run the tests and I see errors. Having 2 bars and not knowing which is objected to, I tested one by one: no error!
I re-install the 2 bars at the same time and I run the test: 150000 errors!
Someone would have an explanation?