My computers run 24/7/365. I reboot as often as I think necessary. Yesterday, upon clicking the "restart" button a succession of "end program" boxes with the little timeout bar began appearing. Now, I realize this happens occasionally for (usually) one program but this time (and every time since) I've has 13 boxes appear. Some of them are for items in the system tray but not all. Also, after the initial detection BIOS screen I get a black screen with a blinking cursor in the extreme upper left corner. The only way I've been able to proceed past this point is to "reset" and press F8 which on this computer gets you to a BIOS screen where you can select your boot drive. I select my HDD and the Win XP splash screen soon appears and then the desktop. I've tried using system restore and flashing the BIOS to currency but no joy. I also ran Malwarebytes. Any suggestions?