when i start my laptop then a beep sound goes on and this happens until i press any keys like 'enter' or 'esc'. if i dont press any key beep beep sound goes on and following message is displayed:- TRAP 0000006 ======EXCEPTION====== tr=0028 cr0=80000011 c2=00000000 cr3=00039000 gdt limit=03FF base=0003F000 idt limit=07FF base=0003F400 cs:eip=0008:8016500C ss:esp=0010:005FBF4 errcode=0000 flags=00010097 Cy NoZr IntDis Down TrapDis eax=0005FC99 cbx=0005FFD8 eox=0000000A edx=004164D2 ds=0010 es=0010 edi=0005FD3A esi=0005FFFC ebp=0005FE1F er0=80000011 fs=0030 gs=0000 i dont know whats the problem and please help. also while working sometimes automatically my system changes from best of performance view from best of appearance view. i have chosen the option of 'let windows choose what's best for my computer' option in visual effects tab of performance options in advanced tab of system properties. i want to ask why does it change? what's wrong? i hope both the problems u can understand and help me.