<p>My opponent timed out and I wanted to get an analysis to see if there was any way to a draw, but it has disappeared from my game archive. Any idea what happened? http://www.chess.com/echess/game.html?id=48290390</p>

Huh? It's there for me when I go to the link you gave. How do you have the link if you can't get to the game?

In fact I'm pretty sure I've played through this game before. Have you posted it before?

I've posted a link to the game that I found by doing the following (it is part of a team match):

a) find the other game I played against the same player in the team match

b) navigate to the team match page itself

c) find this game

I haven't posted this before (the game just finished today).

It isn't listed in my completed games.  When I finished it originally, I asked for a computer analysis, but I never got a response.  When I tried and do a computer analysis now, I get a webpage like this:

Oops?! Invalid server request!

It appears you are passing some invalid parameters in your request. Please try again or contact us if you feel this was our fault.

Go Back to where you were...

Same thing has happened to me a handful of times.  Staff can fix it, if you can give them a link.  Just click on "help" at the top right of this page, and you can send a message explaining what your problem is.  I got mine fixed the same way.  It's just a glitch that occasionally occurs.  Good Luck!