KT3aru and msi GF4ti4400

Question

Hello i am posting this message on behalf of my father who has a very sick computer.
Back in April 02 my father purschased a msi KT3ARU motherboard and two msi GF4ti4400 graphics cards (one for his machine and one for my machine which uses an asus a7v266e mobo).
The first motherboard was found to be dead on installation and was duly changed by the supplier.
the replacement motherboard was installed along with the GF4 and worked fine for a few weeks (apart from the onboard sound quality which was not a problem as i use a sblive card anyway) .
I first started to get random lockups after about 20 minutes of computer use which required a reboot, so the hard drive was completley reformated and a fresh install of Windows xp was made this made no difference.
I then started to get graphical problemswhich initialy consisited of dots on the screen and then proggressed to blocks and total lockups, On rebooting after a lock up the graphical errors would occur during the post/boot sequence ie: the wording on screen during the post would be multi coloured.
Again the hard drives were reformated and fresh installs made and all the latest drivers used (via 4 in 1s,nvidia detonator etc) also the psu was changed for an Enermax 460watt, the problems still continued so the bios was flashed to the latest available on the msi web site. The problem still continued.
The GF4 graphics card from my computer was then swapped into my dads to see if the problem still occured the system ran fine for a week or so before the problems started again. Mean while my dads GF4 was placed in my system (which had run the other GF4 without any problems) within an hour i was experiencing the same graphical errors as my father. This seemed to point to a faulty graphics card so we tried to contacted the supplier unfortunatly todate we have been unable to contact them.
The card was then taken to another computer retailer for independant testing. They concluded that the GF4 was faulty.
When the second GF4 began to play up the whole system was taken to the same computer retailer who has concluded that both GF4s have become faulty and this has been probably caused by a faulty motherboard.
We then contacted [email protected] who after a few email exchanges has said that the motherboard and Gf4s should be returned under warranty to the place of purchase. As pointed out in my first email to them we have been unable to contact them and since informing support of this i have had no furthur contact from them.
Sorry about the length of this post but does anyone have any ideas where to go from here?
Andy
System  spec
MSI KT3 aru Motherboard
athlon 1900 xp
512mb pc2100 memory
MSI GF3ti4400
1x 60 gb maxtor HD windows xp proffesional
1x 40 gb maxtor hd windows 98se
above hd's by caddy only one used at a time
1x 80 gb maxtor hd used as back up drive
Yamaha cd writer
samsung cd drive

Answer 1

Finally found someone with exact same problem.
Just replaced a MSI ti4400 with a 4600, both had same problems as listed above. The 4400 started screwing up about 3 weeks or so after installation, the 4600 was FUBAR right from the start. So now i have to send the 4600 back, I wont be buying anymore MSI now because I will be too paranoid.
MSI you need to start testing your boards a little better before sending them out, thanks.
and FYI the re-seller i got mine from has removed the ti4400's completely.
Bad batch maybe?