Window managers often have the alt key bound to certain features,
especially the alt-click. THIS IS NOT A WINE BUG. If you have problems
with the alt key in any way DO NOT REPORT IT. Fix your window manager.
I'm not going to list steps for every one because there are too many
possibilites. Figure out yourself or ask in a help forum (here is
okay... but be warned all I use is TWM). If you are desperate, turn off
window manager managed windows in winecfg.
Go into KDE Control Center, expand Desktop, click window behavior, then
click window actions tab. You can turn off the alt-combos. If you want
to make window specific settings, click on window specific settings
under window behavior on the side.
The option to change the key binding is in System Menu -> Preferences Menu -> Windows.
Skip the intro videos
Method 1: Rename the videos
After installing the game, its highly recommended that you browse to
your Warcraft III folder and rename the movies folder. Many people crash
from the movies because of buggy sound drivers, or simply hang, so you
should do this in case you are one of them. You can still play the
mplayer (or xine if you so choose)! TutorialIn.mpq is the very first
cinematic of the game, and for the rest; *Op.mpq is the cinematic at the
start of the campaign and *Ed.mpq is the cinematic and the end. If you
wanted to follow the story, it's not hard at all to play the ones
corresponding where you are at.
Method 2: Mark the intro as seen
If you don't want to play the campaign, but only want to start
Warcraft III without a crash while playing the intro then you can simply
mark the intro as seen:
$ wine regedit
Navigate in regedit to HKEY_CURRENT_USER/Software/Blizzard/Warcraft III/
Create a key (folder) Misc in the Warcraft III key. You can do so by right clicking the key.
Create a DWORD value seenintromovie with the value 0x1