if u use vBadvanced Portal , to need to put two ver. to Global Out put in vBadvanced Setting 
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Installation Steps
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#1. Go to AdminCP
#2. vBa CMPS 
#3. Edit Pages
#4. chose page - e.g "Homepage"
#5. put in "Portal Output Global Variables" 
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lxt
lxt_bit
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#6. Save !!
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Finish 
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