Velux window problem

[RegB]

Hi all, I'm putting in a new Velux window at the moment. Today I got the hole cut nicely, offered up the frame - and it didn't fit properly. On close inspection the frame turned out to be slightly warped. I know this is unusual for Velux but that's how it is. The frame hasn't been banged or kept anywhere dodgy. I don't really want to put it in warped or try to twist it back, but time is pressing. Does anyone know if it's possible to "un warp" it or is this a guarantee job?
Thanks for any ideas.
Reg

 

[noseall]

velux are mounted onto the rafters via brackets that are pre-screwed into the window frame, and do not sit inside any frame work. the window sits above the rafters and at the same height as the roof tiles.

are the brackets lifting off their seating positions as a result of the warping? if so it is possible to remove the glazed sash from the frame and maybe fix the frame back to square into its desired position.

if opening and closing of the window is even mildly problematic then take it back.

 

[RegB]

Thanks for that Noseall. By "frame" I meant the window surround (the bit that's left after you remove the glazed section). Thanks for the idea. I'll try screwing in this frame hard and see what the result is. If no go I'll try and get it replaced, as you say.
Thanks again.