Parked document (FBV1) doesn't exist

Hi,

I have this strange problem with the parked document.

I could successfully park document using FBV1 and then trying to post the same document,

but apparently the parked document is missing!

When I search using FV02 using the document number that is returned after successful parking

it doesn't display any result!

What could be the reason that parked document doesn't exist any more in SAP?

Thanks in anticipation.

Venkat