I was at work tonight and somebody brought in their brand new HP computer complaining about not being able to upgrade its memory. It came with 512MB of PC3200, and they bought an extra 512MB of PC3200 to upgrade it to a gig. Well, I open the case to see what was the matter, and i find out that HP has moved the notch of its own memory over one pin so that the customer is REQUIRED to use HP manufatured memory if they want to upgrade it. I have known Dell to do this for quite some time, but HP...c'mon now! This is yet another reason why you NEVER buy a company brand.