>>>>The best remedy here is to color current record in grid and don't use RecordMark.
>>>
>>>Ive been working on that but it seems to be very slow. Do you have any advice as to what to do and what not to do?
>>
>>You use DynamicBackColor property, and this is not slow.
>
>When you use the up and down arrow keys to navagate through records, the colored row lags noticebly behind. My question refers to: Does it matter what color, if the columnsources are calculated will that slow navagation further, use lockscreen or not ... etc. Thanks

Yes, i did notice this behavior also.

Is there any way to avoid this 'trailing behind'

Marc