Sagging beams and cracked gyprock.

Hi - all new here, have a problem in my lounge room / kitchen , since moving into the house I have noted large crack that runs directly vertical under a large wooden beam (with reference to the attached pictures it is the beam above the window). I have tried fixing the cracks several times with tape and plaster but always end up with the same crack pattern running vertical from the beam to floor, excluding the window.

My assumption although I am a nurse first, handyman(ish) second is that the beam is not properly supported by either timber running directly from under the beam to the floor or by a horizontal beam under the larger beam. Their are two large windows with the little wall space for proper supporting and i fail to see how this can hold. Under the larger beam next to the dog picture is also cracking running back to the window.

Given we are just about to re-do the kitchen should i be looking at solutions to fix this wall, perhaps rebracing the wall and putting in smaller windows? This area of the house has two different ceiling heights as the the kitchen is up on piers and the lounge room is step down and built on slab. it is an ild house so i understand there is movement but i think this issue is soley related to insufficient support in the frame.http://www.renovateforum.com/attachm...k-img_0207.jpghttp://www.renovateforum.com/attachm...k-img_0206.jpg

Regards and thank you in advance for any feedback.
Attached Thumbnails http://www.renovateforum.com/attachm...k-img_0207.jpg http://www.renovateforum.com/attachm...k-img_0206.jpg



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