oocalc 2.3 on Fedora 8 is very slow compared to oocalc 2.0 on Fedora 6.

Please see the attached file. There is a small macro in it (a math function) but
it can be turned off as it doesn't affect the following results.

(*) right-click on column "N" (or any other) and choose "insert columns"

Then 
1) in oocalc 2.3 on Fedora 8 it takes 13 seconds to do (*)
2) this time is reduced to less than 1 second if AutoCalculate is turned off.
3) in oocalc 2.0 on Fedora 6 it takes less than 1 second to do (*) whether or
not AutoCalculate is on.

(**) turn off AutoCalculate (via F9 or the menu)

4) in oocalc 2.3 on Fedora 8 it takes 7 seconds to accomplish (**)
5) in oocalc 2.0 on Fedora 6 it takes less than 1 second to do (**)

Packages installed:

On the Fedora 8 box:
openoffice.org-calc-2.3.0-6.6.fc8.rpm

On the Fedora 6 box:
openoffice.org-calc-2.0.4-5.5.24.rpm

Remark. The larger the worksheet, the longer the times in 1) and 4). For some of
my worksheets, it takes an hour to add a single column in oocalc 2.3 while it
takes a second or two in oocalc 2.0. It looks like oocalc 2.3 is recalculating
everything thousands of times when it is not necessary.

AB.