>>>Sorry for wasting your time.
>>
>>I think "sorry I wasted both our time" - otherwise it sounds a bit grovelling - though I don't know what you were aploogising
>>for
>>
>>Colin
>
>For writting stupid message instead of thinking more than 3 minutes on the problem. Though it did help me since when I wrote it up, I figured the simple solution.

Then it wasn't a waste of time. On several occassions, trying to explain a problem has led me to its solution.