I have a BSNL DataOne DSL Plan (256 kbps) and i use windows Xp. Till yesterday, the connection was working fine but now the problem is- When i connect to internet via dsl modem, it works fine for 5-10 minutes, then suddenly i see a strange change in my computer ( windows switches to classic theme, then becomes normal ! ). And after it, the connection doesn's work at all. And worse, when i try to disconnect the connection, it never disconnects. At last i have to shut down the pc. What is this? Is this a virus/malware attack or something like this? I use Avast! anti virus, and during the connection, there was some DCom Exploit attack, And i disabled the DCom feature by software. But the problem still persists! Please help me, i am unable to access my own connection.