I have a TP 365XD which I am very fond of. I have upped its memory to 40meg recently, but when I did so I noticed that the 32 meg card could also be used in a 380 or 580 or 760. Looking further at the manufacturer's Web site, I see they have a 64meg card for these same models. My question is, can I put a 64meg memory card into my 365XD and have a full 72meg of RAM available?