hello guys! just wanted to ask for your opinions/tips regarding this one.. i have a Gateway MT3707 laptop with a Windows Vista (32bit) OS. lately, i have noticed a weird behavior with regards to my unit; its performance has really slowed down lately. upon startup, and/or even though only one one program is running, the whole unit tends to lag already. as i tried to observe its performance via the task manager, under the performance tab, i seem to notice that the physical memory usage history part is almost at its limit already.. it seems to be fixed at the 80-90% capacity always, whether programs are running or none at all.. (see attached image) as an effect of this, programs running tend to lag, and also suffer the case of them Not Responding; in short, a very slow performance.. any suggestions on how to lessen/ improve the performance itself? already tried disk cleanup and defragment but after which, still the same.. thanks!