Just bought a new HP 64 bit laptop with (ugh) Vista. It's not connecting well with my wireless router and cable modem. I already have a Dell laptop (XP), my daughter has a Dell laptop (Vista, 32 bit), we also use an ancient Sony Vaio (XP) and an itty bitty EPC connecting reliably and without a problem.
The 64 bit HP was connecting and then loseing the connection after about 5 minutes – browser reads "connection has been reset". I brought it back to the big box store I purchased it from and of course there it worked fine, so I took it home again. I dumped Norton from it, that didn't help. I finally reset and restarted my modem and router Tuesday night and it worked just fine. I thought my problem was over.
Then last night, it simply wouldn't connect at all for my wife and I couldn't get it to connect either. Then the mouse pad stopped working. Couldn't move the mouse cursor at all after a couple of restarts. Thank goodness I'm a keyboard person! 
I'm hoping I have an expensive lemon and I'm about to bring it back and exchange it.
Does anyone know if 64 bit systems have trouble communicating? My modem is a cable modem and my router is a relatively new (Spring some time) Cisco router.
Thanks in advance for any thoughts or advice.
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Tim