Dell Dimension 2400 crashing

That's worth a try. The white bars can't be related to the RAM or harddrive in my opinion. The graphic card is probably the guilty part, so that's worth a try indeed.

I have NOT tried the Graphics card in the Dell so far because there in NO socket for AGP Graphics card only 3 PCI sockets (I think that's what they are called)

Sorry I mist the word NOT in my last posting.

I am assuming that the Graphics are build-in to the main PCB (board)

Did you check the RAM ? Usually graphical problems are not making the computer unstable, but quite simply impossible to display anything. That's worth checking the RAM from a Live CD.

If that's negative, which video card do you have ?

I replaced the 2 x 256Meg Ram strips which were fitted with 1 x 512Meg Ram strip.

as I said at the top of this posting.

The computer has crash 8 times today, this usually happens when I am on the Internet using Firefox, but rarely when play a video!

Yes, i saw that, but did you still check it ? Random crashes like that are often related to memory problems, so I think it's important to make sure it's not related to that.

As the problem was there before I replaced the RAM and after the RAM was totally replaced I did not think that it was likely that BOTH RAM would be faulty.

But as you think I should test them please advice how this is done....thank you

Mmmm yes, indeed, you are right, quiet unlikely. But always check first, who knows, you could be very unlucky. Better make sure now, at least this option will be tested.

One question, if you boot in recovery mode and type this:

"lspci"

what do you get ? I'm wondering if your problem is not coming from the infamous Intel drivers in Lucid. I had some very very serious problems with them on some Dell laptops, so i think we should identify the card if the memory is not guilty. Thx !

BTW, don't type everything here, look for lines with "Intel", as it's what I'm looking for.

BTW ? what this ? François Tissandier

Thank you for v quick response......Do I press F2 or F12 when booting up to get into recovery mode

It has twice while I was trying to type this

It has CRASHED twice while I was trying to type this

this from Terminal:-
richard@richard-desktop:~$ lspci
00:00.0 Host bridge: Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM Controller/Host-Hub Interface (rev 01)
00:02.0 VGA compatible controller: Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 81)
00:1f.0 ISA bridge: Intel Corporation 82801DB/DBL (ICH4/ICH4-L) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801DB (ICH4) IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 01)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01)
01:09.0 Ethernet controller: Broadcom Corporation BCM4401 100Base-T (rev 01)
richard@richard-desktop:~$

Well, NO crashes (so Far) since I have updated to 10.10 (TO the perfect TEN)

Great ! Same for me, lets cross our fingers ;)