funckenpassportnetwork**** wrote...
I have the ATP installed and i still dont seem to have this cumipmt function.
(I also just did a repair on my office installation and it reported
everything was fine)
....

You may have the ATP files on disk, but are you loading the ATP in
Excel? Excel does *NOT* load the ATP by default. Run the menu command
Tools Add-Ins... to display the Add-Ins dialog. Is the Analysis
ToolPak checked?