急”電腦去到桌面時 .. 個mon會自動冇左畫面..但主機冇熄到 (15點)

開機按 F8 選 safe mode 後, 如果可以正常開機看到低解像度的 VGA 畫面就恭喜你喇, 衹要在控制台內將解像度調低 到 VGA mode 再正常 boot 機後在控制台內將解像度從 VGA mode 再調高適當解像度就應該會全部正常, 否則就要再重裝 display driver 喇 !!

sounds like the problem with the screen resolution being set too high.
Some monitor doesn't support any resolution higher than 1024X768.

Reboot the computer, press F8, then boot into Safe Mode.
If you could go to the desktop in Safe Mode, reset the video card driver
to standard vga. Reboot the computer and let it boot up in the
normal mode. If you can see the desktop, change the video card driver
back to the proper one and choose a lower resolution.

Hope this solve your problem.