I plug my PNY 4GB USB (blue/retractable) into my iMAC USB hub and the computer doesn't recognize it. My PNY 4GB Attachè works fine as does my iPod. Any suggestions?

I bought a deer cam (trail camera) at Walmart and a PNY card with PNY Multi-Slot USB & Flash Card Reader P-UBSDRDR21K-RF. I can't make them all work for me. PNY card reader has no instructions on the package neither on their website and their support is a joke. When I plug in this multi-slot card reader into my PC (I tried two different PCs) something isn't right. I get no results, just empty folders. The card is new and has data on it. Both products come from PNY, both were purchased at Walmart and both are going back to Walmart for a full refund and I will never buy a PNY product ever again.

click start control panel administrative tools computer management device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X

you will need to update/reinstall drivers

right click to reinstall drivers

if you can see your usb drive but its not working

ports (com&lpt) right click update driver if this fails to fix the problem

check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems to a computer and its parts

if you need more help with this or if i have missed the problem post a reply

hope it helps

If several pc's are not recognizing it then clearly it's dead: junk it, it can't be fixed.

your desktop may be affected with some virus...
so just format ur desktop and then use it...

Try putting a tiny piece of scotch tape over the lock slider. See if that works.

Plug the USB flash drive into a USB port on your computer. An Explorer window will popup once it's recognized by Windows.

Click on the file you want to delete so it's highlighted. Right click and choose delete. It's that simple.

Have you installed a scanner/another external USB drive since first trying your Flash drive? If so, try unplugging that and re-insert your Flash drive. I had this problem and a friend suggested this and it worked!

Most flash drive comes with its on date support files on it. If those had not been removed then, yes it will show some space used.

These will plug directly into your USB port. Depending on the computer you have, the port location will change. On most modern desktops, there are two or more USB ports (http://www.shivaranjan.com/shivaupload/windowslivewriter/10WaystoNetworkTwoComputers_11F65/USBPort.jpg) in the front, and several more in the back. On most laptops, there may or may not be some on the back, but typically there are some on the side with the CD/DVD drive. Simply plug the device into one of those ports (make sure you put it in face-up), and your computer should instantly recognize it as a memory card/hard disk.

click on manual specify location and point it to c:\windows\system32 & check the 'search subfolders' checkbox.
Seems to be a Vista bug...
Troubleshoot USB device problems.
http://windowshelp.microsoft.com/Windows/en-US/Help/c39bd203-f729-47a4-8351-83291e13c8a81033.mspx

Please vote...... Good luck