I hope you can help. To try to cut a long STORY short, pc was working fine, then started to crash (like flicking a switch). Notices appeared (blue screen) indicating lack of memory. I tried to reinstall Windows Vista Ultimate 64 bit - but the installation kept crashing. Before this I backed up my work and cleared everything from the hard drive. After REPEATED attempts DOS black screen notices then appeared saying that the boot manager is missing.

I have installed some new ram. 2GB RAM only (just for now) as I am using an OEM version of Windows. Still having this problem. Not getting the 'press any key' prompt to set up Windows. MANAGING to get into the default BIOS. Any help would be most appreciated. Thanks. Managed to get the computer to read my CD/DVD drive by going into the BIOS on booting up (by pressing the Delete key [DEL]). Went through the BIOS menu using the arrow keys on my keyboard, selected the Boot Device Facility and prioritized the CD/DVD I wished to use. Then I made sure that I was satisfied with the changes I had made. Save and Exit. Upon restart the computer automatically read my Windows CD. It is in the PROCESS now of reinstalling Windows. Touch wood.

Just a quick note: Once Windows has been successfully installed I will have to change the booting up sequence to the HARD drive or else I will always be booting up from the CD.1/2 way home...

Let us know.