Suggest that you try disabling then re-enabling ATP. If that doesn't work,
you may need to shut down Excel or even shut down the machine. ATP does
occasionally get lost, for unexplained reasons.
--
David Biddulph

"weeknum hell" <weeknum wrote in message
...
using office 2003 with analysis pak installed. weeknum working fine then
come
back few hours later to #NAME, analysis pak still installed but weeknum
now
missing from formula list help!

can the analysis pak be corrupt