@ BRIAN
will it symlink automatically? in xterminal i did.
apt-get install libavcodec-dev
it installed a file worth of 2.2mb.
then angrybirds seasons HD and beyond nyth both worked but other deb games are not working.i posted the result in the last post.but still there is broken symlinlk in opt/preenv/lib.
so should i paste the downloaded file again in that location? and how to fix the deb games prob. can you have a look? and thank you so much BRIAN.