I have got Laptop Dell Latitude D620, recently (before it was ok) I have experienced problem when booting it, it stacks at the first initial booting process, when it says:
www.dell.com
Latitude D620 Series
BIOS Revision A07
What I use to do , switch off and switch on again , it works normal
I have got three OSs installed on my laptop (W2K3, Linux, Solaris)
I have got all updates installed for hardware.