"Funny" enough: This problem with DX9.0b & WDM Capture drivers isnīt limited to ATI only.
I saw a guy over at rage3d that had problems with BT 8x8 TV card and the sourceforge WDM driver.
I also experienced problems myself when I installed DX9.0b on my other PC:
GeForce3 Ti200 VTR from MSI with the latest NVidia WDM capture driver: After successfull recognition of the WDM cap device my XP Professional reboots all the time unless I remove the WDM driver.
On my main PC Iīm using a GF4 4400Ti with DX9.0 and the latest WDM driver from NVidia without probs.
Fu... M$ and their $hity drivers
-D$