First off, thank you for taking the time to read my post.
I installed the Windows version of Steam via Wine, and then ran Half Life 2. It looks like this:
I'm running Lubuntu (Ubuntu 12.10) on an HP Pavilion dv7-Notebook PC at 1440x900 resolution.
If you have ever played Half Life 2 before, you know it should not look like this. Please help if you can.