>What I mean to say is when I write code using SEEK() function I expect it to work (whereas it does not work in some cases - e.g. Q190496). If my customers would not tell me that the data is being messed up I would never came across this bug. But I didn't test for this bug initially, this is what I meant.

Software development is something like walking in a mine field is it not? Use trusted and proved approaches, but be prepared to walk into the occasional bug/feature. Fortunately, most of the time mines are very much more lethal.

More of my 2 Eurocents.

Marc