Hi guys - hope you can help.

I have removed the plaster board from my chimney breast. The idea being
that I will build a frame for my new LCD TV, cover with drywall and get
a plasterer in to complete.

However, having removed the board it appears to have been 'dabbed' onto
the breeze-block wall of the chimney. This has mostly come-off but I am
left with a number of random 'dabs' on the wall. Can anyone tell me the
best method for removing these as I would like a flat wall to start on.

Cheers,

Steve