IBO 3.6.Ca D4/SP3

A floating point field contains a value, let's say '0.5'. The user
adds accidentally another dot at the end.

An error message "'0.5.' is not a valid floating point value." pops
up, which cannot be cancelled out. Any click on 'Ok' or 'x' does not
make the message box go away while it is impossible to edit the
numeric value in the TIB_Grid field. Well, the message box does go
away but only to pop up again straight away.

There is not tcpip traffic during this state. It appears to be a
'local' problem.

Any ideas out there? Thanks.