This is what happened, in the Display properties, I click Advanced Properties and there Adapter (VGA card), and there Properties and in there I accidentally put in the Use of the adapter, the disable the VGA card, and accept all the windows from there. Next time I boot my PC I can see (literally see) my desktop I see the boot windows but from there I just listen how Windows XP boot, and if I put a Music CD in the cd-rom it plays like windows normally do but actually I can see nothing, I think the problem was with the VGA adapter that I disable but how can I recover from here? I already try to use the safemode and other modes but nothing work, what can I do to solve this problem? Thanks for your help, see ya