I'm getting quite the odd error. I'm running Windows 7 64-bit, and the game was working perfectly a day ago. Now when I click play Diablo attempt to launch but never does so. Opening Task Manager I see Diablo as 'Not Responding'. I've tried running a video test, changing the video mode from DirectDraw, Direct3D and 3DFX Glide. Glide was where it was working, but isn't anymore. Attempting to run with DirectDraw gives the same issue where the game acts as if it's attempting to open, but never goes anywhere.
3DFX I get an exception Error message. I'm not sure what changed but I have not messed with any of the settings recently. I've also done a complete reinstall of Diablo and Median XL. This is what I get when I click the play button. Any help would be greatly appreciated!
EDIT: I fixed it. Added the suffix -nofixaspect to the launcher target of Diablo 2 and it resolved the issue.