Blank screen w/cursor

[R C Cola]

  Using Vista Home Premium 32bit on a Dell. Shortly after a power outage we find a completely blank screen with a cursor at the top left. We do a control-alt-delete then at the dell screen tap on F12 then use the arrow keys to choose the working hard drive (which is the designated boot drive) hit enter and then choose "start win normally" and system loads properly and all is well till next time. AVG says we have no virus, and went back 2 wks for a system restore, also tried the last known good. Nothing has improved. Googled this and tried suggestions none of which has worked. Any ideas will be tried. Left on overnight almost every morning we are looking at a blank screen again.
                                                        Thanks   R C

[jason2074]

Left on overnight almost every morning we are looking at a blank screen again

You may be using a power saving option or using either hibernate or sleep mode...

[R C Cola]

Jason...Thanks for the tip, will give it a try.    R C

[R C Cola]

Reset those, did not make a differance when changed.  Also tried to reset the boot sequence on startup and the screen shows that it is in the first position in the list. But when I try to reboot screen now says cannot boot from floppy.

[rthompson80819]

When you say, reset those, did you set all the  power saving and hibernate options to none?