Weird runtime error

Has anyone else come across this error;
Error code 203 (xbox)

It happens on this line of code in a case statement in a List Box object method;
Code :
: (Form event=On Display Detail)

It only happens on 1 user’s PC in a Client/Server installation.

I clear all of their cache files and it’s fine for a while (an hour or 2) and then the error comes back again.

It’s got me totally stumped. I don’t even know where to start looking.

Windows, 4D v17R3.


Hi Peter,

I’ve seen this on a customers site (using mainly Terminal Server, 4D v17R6). The error appears now and then (once in a few weeks or so) but on several connected clients. Not on one particular machine. They use several TS servers to distribute the client work load.

We are thinking it is caused by some kind of network interruption which puts 4D in an invalid state, but haven’t found the real problem.

Kind regards,

Thanks Koen. That fits with my customer’s situation too. They’re running TS.

I’ll keep an eye on it and see if I can work it out.

I’ll let you know if I find anything.