Server Button not visible on ASP.net page

I have just installed ASP.net and as such am quite a newbie at it.

On a new asp.net project I dropped a label control and a button control and ran it by pressing F5.
First of all it gave me a cannot debug or something message so I had to start without debugging by pressing Ctrl+F5.
Secondly after running, the page just showed me just the label. The button was not visible at all. I tried doing the same on another fresh installation of ASP.net and encountered the same problem...

so my questions are
1. How do I enable debugging on the server
2. Where has the server button gone and how do I get it to show itself

Thanks for any help.

find and run an exe called

aspnet_regiis.exe

and use the the -i flag

so at command line in the directory it is in, type anspnet_regiis.exe -i

i had the same problem just a week ago ( you can see my post, "cant see controls"), but everythings working fine after doing what Cander says here

Also turn customerrors to off in your web.config file. You can't debug on your server, so if you set that to off, you will be able to at least see the errors when they happen.