IBM Thinkpad Monitor goes blank after a few miniutes

Hi,
I have aT43p with an ATI Mobility FireGL V3200 running XP Sp2. For the past couple of weeks the screen goes blank (Black) after several minutes. I can use the Fn-F7 to toggle the monitor between LCD and external monitor (which is not attached) and back to LCD (or dual display) and the LCD works again!, but alas only for several more moments and then it goes blank again and I have to re-toggle. I find that if I run on only battery power I get several extra minutes before Blacks-Ville. The same effect can be achieved by putting her to sleep and then waking her.
I should mention that there is a slight pink tinge to the display during the initial splash screen (while the option to enter the Bios via blue Access IBM button), but this goes completely for subsequent screen displays.
I can connect across the LAN using VNC and can see windows (as one would expect).
I have gone to the support area and downloaded all drivers and reinstalled to no avail. I have also checked the Monitor connections, but there is no obvious loose connection. I have also run a in-depth virus analysis (using ESET NOD) and an Adaware sweep, again with no positive result. I have also gone into MSCONFIG, disabled as much as I can and I have also rolled back using System Restore to a time before the issue presented.
Nothing that I have done to date has made the slightest difference.
The screen Blacks even if I go straight to Bios which inclines me to think that the problem lies outside of Windows.
If anybody has any ideas or suggestions I would really appreciate it.
Thanks
Dave
Message Edited by ddempsey on 08-10-2008 05:48 AM

Hello ddempsey,
I can confirm all your problems (except the "slight pink tinge"- sure it is not
a reflection or so?), I've got them on my a21p since a couple of years as well.
I am using an external monitor after I tried all software possibilties and was
fed up with the toggling. colours are still excellent, I contradict a dying
as such, a digital display is either on or off, not fading away.
in desperation I replaced the inverter card (part number 12P3053) as a
last resort but without any success.
so I was happy to find one with exact the same problem and I hope
by jumping on your train that someone comes up with a solution.
have you tried this:
if you do not boot windows, leaving a plain start screen
either by pressing pause or later f8 the display shuts down
in the same way, thereby proving that the problem
is beyond an explanation due to a higher resolution task.
this arouses a suspicion whether the ATi Rage Mobility graphic card
(messing up in all brands of notebooks - see copious complains in the www)
might be the cause. unfortunately ATI been bought by AMD
but the support of its successor for old cards is a disgrace compared
what Lenovo still delivering for ancient IBM users!
regardsDamian
Message Edited by Anvil2k8 on 08-20-2008 05:16 AM

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IBM Thinkpad Monitor goes blank after a few miniutes

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