reinhardholzner,
No, I deactivated it. "Do you have a SIM-less CDMA phone?" - what is this? I have a SIM-card.
Jan Svehlak,
Yes, it's rooted. I'm not tech-savvy, what is ROM?
Yes, drivers are okay, as I said before, I was able to connect my phone to PC before installing avast!.
No, I didn't uninstalled it yet. I need this software, so even if it works okay without Avast!, I will keep it.
Right now, I just unmount my SD card and put it in card reader.