Hi, my double glazed window which is hinged on the left side, handle operates a top and bottom (RH corners) latch which sits into a housing which secures the window (hope this makes sense). Well the bottom one has come jammed, the top is still working ok. Now to get access to the mechanism you need to open the window, i am guessing the bar has either broken or come unscrewed. My question is, how to I get to access the mechanism as i cannot open the window, i have taken the handle off to try and see if i can sort off 'lift' the bottom bar...alas to no avail. Am i going to need to call in the experts? As if i force it, i am guessing it will break the housing, and cause some damage to the unit etc. Please advise Many thanks