What version of Win are you using? The reason I ask is because I'm running XP and I upgraded to 2 GB and now my 1012 is slower than slow. I did a search and found that XP on a mini can't handle more than 1.5GB and that it will cause a slowdown and other crazy things to occur. It has something to do with the atom processor. Sounds like that is what is happening to you or it could be that you have defective or wrong memory. Did you get the memory from Dell or an outside source? If it were me I'd remove the memory and return it where I bought it.