can anyone advise, my comp seems to be playing up lately with dos in particular. i was worried as a friend recently 'optomised' the comp. and since then i have been unable to access dos in order to play games from cd. the cd itself works ok on other computers but whatever he has done not on mines. please help anyone.... sometimes it just will not start the games menu on the disc and on other occasions it will come out of windows to revert to dos, supposedly but relaunch direct to windows itself???? i use win98se.