dma problems caused broken ide-driver

[ausgang]

i got transfer mode problems with my SONY DVD+-RW DW-Q58A

inspection in the device manager showed the following:

primary ide-device 0 current transfer mode is at "ultra dma mode 5"
primary ide-device 1 current transfer mode is at "not available"

secondary ide-device 0 WAS at "pio"
secondary ide-device 1 current transfer mode was at "not available"

i thought that my dvd-drive is secondary-ide; device 0;
although "dma, if available" was selected, the channel only had "pio".
i hoped to fix it with this thread:

http://www.cdrlabs.com/phpBB/viewtopic.php?t=6645

first, i set the channel to "pio" - reboot - then i set the channel again to "dma, if available" - reboot - same shit as before, nothing changed.

then i deleted the secondary ide - reboot - another problem occured windows can't reinstall the driver for the secondary ide. each reboot i am told, that new hardware is found (the 2nd ide), but the drivers could not be installed (neither automatically nor manual method functioned).

i am using xp pro sp2 (all updates installed).

now there is a yellow sign on the ide-channel in my device manager.

and now the curiosity: i can see and open data on my dvd drive in windows-explorer ....

don't know what to do ... anybody got an idea?

thanks in advance

[Ian]

Are you using the Microsoft IDE drivers or ones for your motherboard (VIA, Nvidia, etc)?

[Scour]

Deinstall the IDE-port and reinstall MS Standard-IDE-drivers and make reboot

[ausgang]

the chaotic situation endend up in re-installing windows. when i tried to go back to a system-restore-point restarting ended up in blue screen. also repairing via windows cd didn't do the job. i hate it when such things happen. thanks anyway for the suggestions. after re-installing every ide-channel is at dma transfer.