I'm confused. my thumbdrive worked on my projector the other day, movies and PP. now the projector/thumbdrive doesn't show it. it's there and works on laptop. WTF.
Some versions of the operating system may not recognize it. Generally, if the thumb drive is formatted as FAT32, every PC should recognize it. Plus those drives are not reliable so you need to always carry a 2nd one. I bring a 3rd with me to school. It's a pain in the ass.