GARY said:
SUDDENLY i'M UNABLE TO SEND MESSAGES. MY PC IS 4 MONTHS OLD AND I GET AN
ERROR MESSAGE"UNABLE TO SEND" CHECK LOW MEMORY OR LOW DISK SPACE
ANYONE WITH SIMILIAR PROBLEM
If you want to be treated as shouting and therefore receive fewer answers,
type
your messages mostly in CAPITAL LETTERS.
If messages you tried to send are piling up in your Outbox, try deleting the
oldest one and see if that helps.
If any won't delete, this fix often works for such problems. Download and
install it with Windows Mail not running.
http://support.microsoft.com/default.aspx/kb/941090
Although it's labelled as for mail stuck in the Outbox, it also works in
other folders. If you don't know whether to use the 32-bit version or
the 64-bit version, try the 32-bit version first. Certain common
antivirus programs, such as most of those from Norton or McAfee,
or a recent one from Trend, tend to cause such problems, although
seldom immediately, so if you have such a program, remember
where to find the fix - you are likely to need it again.