ATI AIW8500 crash down
 

Sorry,
I have to explain my problem in English because I can't type Chinese on my computer now due to incomplete reinstallation.
My computer has GIGABYTE 7VAXP with the chip of VIA KT400, Athlon XP 1700+, DDR RAM 256 mb X 2, SB Audigy, Intel net card, WD 80G X2, ASUS 16X DVD, ASUS 40X CDR, and some other peripherals. I started to use it since last Sep. and it was stable except that sometimes it can't close normally- it hanged on the blue closing window.
However, in this one month, it started to crashed down during normal usage, such as internet browing, view documents. I've reinstalled the ATI 8500 AIW OMEGA driver for 2 times, the 2.74a and the previous version, but in vain. I've removed the driver step by step under the suggestion of an article in the forum.
When crash-down happened, the computer showed horizontal and vertical lines, or, a lot of grids in many colors.The first crash-down happened when I view a real-player files via RealOne player, no any pictures were shown, and then the following crash-down let me crazy. The crash-down happened most frequently in playing real-player files, and once when I open a mpeg file twice. The crash-down of playing realplayer files was solved after I removed realone player and installed realplayer 8.
The following situation was, crash-down just after entering the Windows XP for about 2 mintues. In the beginning, I can solve it by restarting my computer for several times or entering the safe mode. But now, I even can't enter the safe mode. The crash-down pictures are all the same mode, vertical and horizontal lines over the moniter. After the moniter only showed grids, the music continues for about 30 seconds and then stoppted, too.
I have searched the forum but I can't find any solutions or clues. Can anyone help me or tell me what happened?
I plan to reintall my computer in this several days. But I still want to know what happened to my computer.
One more thing, I played the simulator of SEGA and something like that in recent 1 month. The crash-down happened after that. I played realplayer files normally via realone player before.
Thanks for your help.

檢查你的記憶體....
先拿掉一支DDR RAM 256MB 開機，跑一會兒看有沒有問題。
再將這支拿掉，插上另一支，跑一會兒看有沒有問題。
最後檢查ATI 8500 AIW和CPU的風扇有沒有轉動。
如果都沒問題，請重灌os

目前已經重灌windows xp +sp1,
灌了omega drive 2.78主程式沒問題，
但是要灌wdm driver時，
在跑完ati將給您指導xxxx..之後，
也就是檔案解壓縮到C/ATI/XXXXXX.....後，
就出現之前的當機畫面。

而且在device manager中，
這些相關硬體都是unkonwn, asscociated with ATI 8500DV
重灌之前有用過omeg 2.74a版，
那時還可以安全的灌好，
但是一直當機，
至於更之前的版本omega 2.43在今年中一開始灌好並沒有當機的問題。
會改灌2.74是因為電腦開始狂當:~
目前把那些unknown都disable掉，
到目前都沒有當機的問題。
我有試過在2.78下安裝之前搭配的wdm driver，
也是解壓完就當機。
難道是硬體有什麼衝突還是掛點？
不然為什麼連driver都還沒開始要安裝，
就當機給我看....
還是2.78版本來就會有當機問題？@@...