Try explicting setting the selectedindex property of the SelectElement. I'm guessing that just setting the Value property isn't changing the selected index, so you're not making it past the first thing the script does. Which is to return false if selectedindex=0. 


with .document.all("rvReportsMain$ctl01$ctl05$ctl00")
    .Value = "CSV"
    'I'm guessing 0 = "Select a format" thus CSV should be 2
    .selectedindex = 2 
end with

Good luck with it...

Shred