It’s a Pentium M 1.6GHz, 5400rpm HD, 256mb RAM. Opening and trying to use Photoshop is extremely sluggish (hangs for short periods, quite unresponsive, even with the simplest things). It’s not bogged down with heaps of unnecessary stuff - mainly just used for web browsing. If I bump the memory up to, say, 1gb, will I see a dramatic improvement in performance? Because as far as I can see, the RAM is the only thing that’s not quite up to scratch.
Thanks 
