FAT filesystem panic

[AlienNation]

Hi,

I have a problem with one of my harddrives. I have one big partition on a 200GB drive which I use to share data between Windows and Linux. Today I discovered that the drive had been mounted in read-only which was weired cause it's not supposed to...

I checked dmesg and I have the following output repeating over and over again:

FAT: Filesystem panic (dev hdb1)
clusters badly computed (12784 != 12768)
FAT: Filesystem panic (dev hdb1)
clusters badly computed (12785 != 12769)
FAT: Filesystem panic (dev hdb1)
clusters badly computed (12786 != 12770)

HDB1 is the partition used for sharing. The numbers in the message above change, but otherwise it's the same message over and over..

Any idea what might have caused this or any tools to fix it?

Thanks

[blobaugh]

have you tried just running an fsck on it?