Hi everyone, I am new to this forum and joined to try and get an answer to a problem I have with my laptop (Dell Latitude D620, Windows XP Professional, SP3). I realise this has been covered in older posts but nothing listed in them has helped me. I had a battery issue last week, which resulted in my laptop having a blue screen (Unmountable_boot_volume) error. This was resolved by replacing the battery and repairing windows using a Dell XP reinstallation disc via the Recovery Console. The laptop ran well until this am, when my wife took the laptop over to her printer to print off a Powerpoint slide and also load said slide to her USB memory stick (don't ask why she didn't just load the file to memory stick and take that to her own laptop and printer!?). On rebooting the laptop when I got to my workshop, the laptop failed just after the Windows XP boot (splash) screen, resulting in a black screen with just the cursor arrow visible. On reading hundreds of forum threads I have unsuccessfully tried the following: 1) F5 on reboot and tried reboot in 'Last know good configuration', 'Safe Mode', Safe mode with prompts etc. all end up with black screen (note: safe mode options result in safe mode being visible in each corner of monitor) 2) F5 on reboot 'Enable VGA Mode' ends with black screen 3) Loaded windows from reinstallation disc and have gone through whole repair console process again (using chkdsk /r). I selected 'installation 1' whilst doing this, even though I wasn't sure how many installations were actually on there? 4) From recovery console I have also tried FIXBOOT and FIXMBR (as per suggestion on MS support ref: Q314503) wityh no change 5) I have plugged in a monitor and used fn F8 with no change 6) I have looked for the monitor on/off switch but I think the D620 monitor is managed via the locking mechanism ie. it doesn't have a switch in or near the hinges? 7) I rang Dell support and they went through the hardware diagnostics suite, with everything passing. They have suggested I contact the Dell Software Support team but the cost for this is not included in my warranty Not tried: I have not worked out how to rollback the startup, other than the 'Last known good configuration' option in the Windows Advanced Options Window? Apologies in advance for this long message but I wanted to include as much information as possible. Please help as although I backed up my docs after last weeks issues, my pictures and other software is still on there and I would prefer not to wipe them. Many thanks in advance!