> THe trouble with it is that it doesn't happen every time. If it

happens

> the first time you open calnedar, then it happens also afterward.
> But sometimes it works ok always

One of those sorts of problems :-(

A similar sort of situation used to happen with TIB_Grid. From memory
that problem came down to the fact that a windows message was being
lost due to callbacks. Is it possible that the problem only occurs
when your application is busy in some way?

If there is nothing obvious, try disabling the transaction automation
timer to ensure that IBO is not working in the background. (Drop
TIB_SessionProps onto the app and set TimerInterval to 0)

Note that this suggestion is only for debugging - and I dont really
expect it to help. But it may be worth trying to see if the problem
is be due to some external influence - which could explain the
intermittent nature of the problem.

I am not sure what else to suggest. If we cannot reproduce the
problem it is going to be very difficult to track down and fix.


Geoff Worboys
Telesis Computing