Vlad

>>I guess it is not a problem with Citrix but with VFP or even with a code in application controls.

The problem occurs because VFP fires Click event for first click. When this code runs slowly or make slow huge refreshes of interface parts, second click is not recognized by VFP causing it lost. Programmers often think in such case that this is a bug in VFP that causes double click not working, when really it is related to the delay between slow acting of the VFP application to the first click, thus VFP cannot process second click in the DblClick event for double click action because it did not finished previous code from the click event.

In your case the problem might be the same - with Citrix there is a significant delay compare to the usual running of the application, that might cause the same effect.<<

Thanks for this very interesting info. I don't think it's the problem in my case because there is no non-default code in the relevant click events.
Also - just in case the native VFP click event code is causing problems, I added a NODEFAULT to the Click event - still the same problem.

I will knock up a small test app with minimum amount of code and see of thise still gives me the problem. If not - then it's probably down to adding code/controls back in until I hit the problem - what fun <g>

Regards

Anna