submit button in ascx posts back, but does not enter the ascx_load

this is driving me NUTS!

i have a submit button in a header.ascx, which is in every page.

it's now a normal html submit button because i thought maybe the asp:button was giving me trouble, but as it turns out the troubles are still here.

so what happens: i click on the submit button (in the .ascx), the page reloads.... without entering the load event of the ascx.

click again... still not

then click 1 to 3 times again (random, sometimes i have to click 3 ti开发者_运维问答mes total, sometimes 7): still not

then click again: tadaa! there is the load event breakpoint hitting....

there must be a simple reason, please tell me what it is.....

EDIT there is some outputcaching going on ( defined in the page), posts are not cached, right??