Validating hard drive?

[moominpapa]

Ok here is the problem.  Ive recently installed a hard drive in my amiga 1200 and it has been working fine for the last week.  Ive been installing games on it and having all kinds of fun.

Now, however, when i boot to the hard drive i get a system request box that says "Work  has a checksum error on disk block 552383".  If i press cancel the warning goes away and everything seems fine, games load as normal etc, but when i go to write anything to the disk i get another message saying
"Volume Work is not validated"
How can i fix this?
Thanks

[moominpapa]

1. 500mb
2. unknown
3. Workbench  3.0
4. probably not

Thanks

[moominpapa]

Thanks for the help, i will give DiskSalv a try.
The disk is only 500mb in size and is all one partition.
Ive got into a bad habbit of switching the amiga off when i get impatient with it loading, thats most likely what happened.

moominpapa

[moominpapa]

Amije, are you saying it is possible that the disk will fix it self?  Is it automatically running a program that i have not noticed?
Thanks

[moominpapa]

Thanks, i will remember this next time i mess up the drive, ive already started running disksalv this time though, so i might aswell see it through.
Once again thanks everyone for your help

[moominpapa]

ok, i ran disksalv and it got very confusing for me at the end, asking me for directories to save the data to.  So ive decided to let the amiga validate itself as advised by amije.

How exactly do i get the amiga to do this?  Ive left it sitting for 5 minutes and the hard disk light has not started flashing yet.

I must add that when workbench has booted, and i look at the volume information for the drive, it says "volume is validating" does this mean it is in the process of validating, even though the hard disk light is not illuminated"?

[moominpapa]

When i boot the amiga, everything is as in my first post at the top of this thread.  To further clarify, when the amiga has booted, nothing else happens, the hard disk light does not flash at all, so i dont know if anything is happening to the disk.
thanks

[moominpapa]

if i press the retry button the same box pops up again with the same question, and again and again etc...

[moominpapa]

The disk light flashes once as the disk is briefly accessed.

[moominpapa]

Problem solved running the repair part of disksalv.