Error messages when trying to delete unwanted emails.

Hi folks

I'm just going through the regular deleting of unwanted **** from my inbox, but i'm currently stopped in my tracks.

I'm having a number of problems but they all involve error messages, either telling me the message could not be displayed (in the preview window) and to check for low memory or disk space, or "there was an error decoding this message the message header contains invalid data"

Both these seem to prevent deletion or removing to junk.

I'm guessing they are emails loaded with unwanted content and want them gone asap, any help on how to get rid would be appreciated.

Thanx

Chatters