questions about usb sticks!

I need your help flist on usb sticks! I was wondering if I could use a different stick on my pc or do I have to use the same kind? I had bought a scandisk 8gb today and tried it on mine, but it wouldn't work. But yet it worked on my mom's pc.  The first one that I bought is a pny 4 gb stick. I was wondering if anyone could help me out on this? Thanks!

weather for the week

I had to look at the weather for this week and I know I 'm trying my best to stay well. But knowing what to wear is the hard part! Look at these temps: http://www.witn.com/imageViewer?url=http://gray.ftp.clickability.com/witnwebftp/images/7dayPM.JPG&width=640&height=480&title=7 Day Forecast

How is everyone else's weather?