Hi guys, something very interesting happened with me. I was using my Athlon 1.4 with 512MB SDRAM, the games was playing well, not perfect but playable... I had the famous lag on corner situations etc...about two months ago I lost one memmory stick (256MB). Just for curiosity I tried to run PES3 with 256mb and guess what??? It was the same thing... the same game speed... usually ther's a lot of dif. between running a game with 256mb and 512mb, It was very very strange... well, I'm now with 512DDR, and with a new HD 80Gb 7200 8 Cache, after installing the game and the newest Nvidia driver the game is flawless... perfect... don't have any idea of who's the responsible for that (HD, new memory, new nvidia driver...). The fact is that 256mb and 512mb doesn't affected the game (at least for me).
I'm posting here cause I saw that you tried to change de res., and the game still slow... I don't know what's wrong with PES and W11 but I think that most of the lag and other stuff are not hardware problems, you can see here at the forum a lot of good PCs with lag problem, and sincerely, this game doesn't have heavy graphics.
Ah, I almost forgot... when I wuit the game I need to wait for a while to go back to windows screen... never crashed but I have to wait a little... (sry for my terrible english)