Installed Quarx : 13/4 on Normal Red Defy. On computer SD card is not detected , any idea ?
I had same problem on one of my PC's. (Second with same system worked well )
USB connection works well if you disable USB debugging but its powning the Android
Here is what I found on polish forum (it may be from here anyway):
"Right My Computer and select properties. Goto device manager. And locate MTP USB Device. Right click and choose select update driver. Select 'browse my computer for drivers' and then choose "Let me pick drivers to install". You will get two options select the USB controllers and click OK and you are done. "