Question : readyboost quit working on a "ready-boost capable device", suddenly

man this is frustrating.  i have a usb key that i know is ready boost capable.  it said it on the box and it worked for 2 days before it crapped out.  

i have a laptop bought within the last 6 months new.  64 bit gateway amd turion.  has 4 usb 2.0 ports.  

anyways today i'm sitting there and it throws an error message at me about how i should choose a high speed port for my readyboost device or something.  i was confused by it.  Clicked ok, cancelled... did something.  

Ever since, when i put my flash device in, it says on the ready boost tab something like what this guy says:

You'll be told the device is "plugged into an unsupported interface" (meaning something about it is probably USB 1.x), or that the device "must be greater than 256MB" (as with other things in life, size does matter), or you'll see the message below, which indicates it's just plain too slow:

The device is a 1 gig flash card.  My usb ports should be usb 2.0....  

Does anyone have any ideas of what I could do to get the thing to recognize it as good again, refresh it, delete stuff, etc.  

I've already deleted everything under usb int he device manager and reinstalled it.  That didn't seem to do anything.  It didn't even have to repick the device back up.  

I'm doing system restores now to see if that helps.  Restarted my computer.  Tried the key in all 4 slots.  Reformatted the drive in ntfs, fat, and fat 32 using quick formatting.  

tony

Answer : readyboost quit working on a "ready-boost capable device", suddenly

FAT32 is the correct file system to use.
After formatting, when you insert the USB device, you will see a "Speed up my system" option at the bottom of the Auto Play dialog. Have you rechecked this?