Hi,

I have an intermittent error where Excel fails to calculate values properly.
This is within our Citrix farm but there is no pattern to the server people
are on.

Sometimes, you can be in a worksheet and hitting F9 will calculate the value
of some equation to be 0, the answer is always zero. Even something as
simple as 1+1 results in 0.

You can exit Excel, reopen the file and all will be good again. Then a few
days later perhaps the problem will crop up. This happens on numerous files
so it doesn't appear to be the file iteslf.

We have recently rebuilt the farm completely (for other reasons, but we'd
hoped this may cure the problem) but the problem has continued.

I'm stumped on this. Anyone have any ideas?