It's a Celeron value machine so it should run very slowly. Maybe 2GB will help but you still have the slow hard disk in there.
Linux might be a better idea.
I purchased a Toshiba Satellite A135-S7404 a couple of months back at a great price - unfortunately it is slower than my 12 year old pc with Win 95 on it.
I added more memory of a gig but still problems. After some research I find it takes a maximum of 2gig. I will buy more memory and replace the 512mb but does anyone know specifically which memory is best for this laptop?
Also any ideas to speed it up - such as does Vista have a way of reverting back to XP like XP has to 2000 (look wise anyway).
Thanks in advance