|Thanks for the idea!|
As far as i could remember, the last thing i installed are Turbo C, the file manager for Sony Ericsson phone, and I connected also a speaker. Before I'm only using an ear phone instead of speaker. But prior to the installation, my pc caught a win32 and trojan virus. Although AVIRA was able to removed it, I'm not sure if the virus infected the system of my pc.
If this could be any driver incompatibility, how would i know?
Or if this could be a form of any virus, how could I remove the virus and repair the pc?