How can I know which version of LCD4linux has been installed?

mysat-bs

Vu+ User
My DUO2 runs BH 2.0.6 and LCD4linux. I cannot access the LCD4linux by webif for a while, I am tring to resinstall the LCD4linux, how do I know which version of lcd4linux has been installed? I have tried a few times by ipk installation. The system never give me a warning such as saying you have the latest version installed. please help! Also how activated and deactivate the webif of LCD4linux?
 
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