I am a complete Linux beginner - this is literally the first time I have ever tried to install Linux in any guise on any machine, so I apologise if I'm being completely dense here!
Using the DVD install disc for Linux MCE, everything seemed to install correctly. However when the machine boots up I get the Kubuntu screen with the blue loading bar, which gets halfway full before the pc speaker plays a little downward scale of notes. The bar then continues to 100%, then there is briefly a console screen that says something about the "mdadm.conf" file and gives me a prompt to login to the dcerouter. Maybe a second later it changes to another console screen that says something about a helper script, then the pc speaker plays 4 notes that go low-high-low-high and the screen goes blank and I have to do a hard reset.
Any ideas? I'm using an old PC to install this on, which is a AMD Athlon 1.4 and has 512Mb RAM and a 120 Gb HDD. Its also got a Nvidia 4800 Ti SE graphics card and 2 network cards as suggested. I took any excess hardware out after the first couple of tries to install LMCE thinking that it could have been my old SCSI card that was messing things up, but I'm still getting the same problem. I know that the hardware all works as the machine was running Windows XP fine up until I installed LMCE instead.
Like I say - I have no Linux experience at all, so please make any suggestions baby-proof! Thanks very much!