I want to up grade my sony viao VGN-AR21S....I want to up grade the processor to the most powerful that the motherboard will handle.....which one????......i want to incress the ram to the most possible.....how much can it be incressed by????.....i want to up grade the two hard drives....by how much??????......the blue ray canot play blue ray films without stutting and losing the sound synronization.....the Processor is working 100% when playing blue ray movies......why did sony approve selling this model if it is not fit for purpose of playing blue ray films properly????.....in short i want the highest upgrade possible....
