I am having trouble saving files to my mbed, this is strange because it works with many other computers except the one in my office. When I tried to save the file to the mbed drive, it tends to freeze the computer, and sometime it will say I/O device error. I formatted the mbed a couple of times, it remains the same. It worked for a couple of times after I plugged another mbed into that computer, than it stopped working again. Sometimes there appears very strange files with indicated size of over 3 gigbytes. Does this have something to do with the driver on my computer? How can I fix it? Thank you in advance!

Hi, I thought I'd just post an update on this issue. After an entire week's frustration, I discovered that this issue can be solved by using a different type of USB cable or a USB hub. This cable works only with some computers, but refuse to work with certain computers, not sure if it is the USB composite driver. Very strange,huh?