"Account does not exist" error one one account when "Viewing Mail"

[nufan]

Hi there, wondering if anyone has any ideas on this.

Since I upgraded to 5.0.11 (from 5.0.6), I have one account that I get an error message with when I try "View Mail" (error pasted at end of my thread). The account can be logged into fine, and after it is logged into if I then go and "View Mail" again it works. However it always reverts back to this error message after some time. Any ideas what could be causing this? I appreciate any assistance !

Error as follows:

! Account does not exist

(Then when I click on "Detail" on the error pop up I get):

Message: no such account: e730e5de-97e7-4ec0-a97e-1f129e5c06f4 Error code: account.NO_SUCH_ACCOUNT Method: DelegateAuthRequest Details:soap:Sender

[nufan]

bumpbumpbump

[nufan]

anyone have any ideas? Still happening.