Validation not working

[xloop]

I cannot understand for the life of me why my validation isn't working...

Basically, i'm using a custom validator that calls a server side function, if it's incorrect it calls args.Value = false;

Yesterday this worked absolutely fine, now i've added one that does much the same sort of thing and now both of them have just stopped working, i can step all the way through my code and it hits the args.value=false statement and then just submits the form anyway!

Why why why???

Any help would be greatly appreciated

 

[xloop]

I should add that i'm just setting the ControlToValidate to any old control, then using my own logic to validate more than one control, can't see thats the issue though