Dropdownlist causes blank screen

[RML]

Hi,

I have a VS .Net 2003 webform that contains 2 dropdownlist controls. One
picks a month, and the second picks a year. Both have their AutoPostBack
propertie enabled. When I run the form, and select a differnet month, and
before the postback happens, I quickly select a different year, the page
displays as a blank page.

The page is displayed in a 2 section html Frameset (main & content). The
main frame contains a hyperlink to display the page in the content frame.

If I click the hyperlink to re-display the page, it still shows blank.

I put a breakpoint in the Page_load() event, and all my code runs with no
problems.

Any ideas on what is happening?

RML